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Blockchain in the Public Sector – Webcast Q&A

Blockchain in the Public Sector – Webcast Q&A
Link to our website: https://block.co/blockchain-in-the-public-sector-webcast-qa/
Block.co fourth webcast titled "Digital Transformation of the Public Sector & The Upcoming Legislation of Blockchain Technology in Cyprus” was an immense success. We gathered some of the best experts in the field, Deputy Minister Kyriacos Kokkinos, Jeff Bandman, Steve Tendon, and Christiana Aristidou to share their experience and discuss with us the latest updates regarding Blockchain in the Public Sector.
In its fourth series of webcasts, Block.co gathered 281 people watching the event from 41 different countries, for a two-hour webcast where guests answered participants’ questions. Following the impressive outcome and response we received from the audience, Block.co’s team has done its best to address all the questions for which public information is available.
Below is a list of the questions that were made and were not answered due to time constraints during the webcast. For the remaining questions from our audience, the team will reach out to our distinguished guests to receive their comments and feedback. Please note, that the below information is only for informational purposes!
Question 1:
How can asset tracing be accomplished with bitcoins and cryptocurrency? And how can this be regulated?
Block.co Team Answer:
Digital Asset tracing may be accomplished with cryptocurrency intelligence solutions such as Cipher Trace and the ICE cryptocurrency intelligence program. FATF (Financial Action Task Force) embarked on a program of work from summer 2018 to June 2019 to strengthen and update the provisions dealing with virtual assets and virtual asset service providers. FATF updated Recommendations in October 2018 and Guidance in June 2019 include several new obligations that apply to VASPs. The so-called “Travel Rule” FATF announced in October 2019 agreed on the assessment criteria for how it will assess countries’ compliance with the new global standards. Under the Travel Rule, the transmitter’s financial institutions must include and send information in the transmittal order such as Information about the identity, name, address, and account number of the sender and its financial institution Information about the identity, name, address and account number of the recipient. The ”Travel Rule” is effectively being applied to cryptoasset transfers when there is a virtual asset service provider (VASP) involved. The scope of focus has broadened from “convertible” virtual assets to any virtual asset. Countries should make sure businesses can freeze crypto wallet or exchange accounts for sanctioned individuals.
Question 2:
Which kind of software or technical knowledge is required to develop cryptocurrency?
Block.co Team Answer:
It depends on the type of cryptocurrency you wish to create, as well as the preferred functionality and features, and characteristics of the token or coin (i.e. will it be pre-mined, what type of hashing or cryptographic algorithm will be used (i.e. proof of work (POW) or proof of stake (POS) or a hybrid of both), etc. Likewise, it is useful to utilize a programming language that is broadly used and supported by a vast and active development community; more data could be found here: more information could be found here: top programming languages in 2015/2016, published by IEEE here, and TIOBE. Hypothetically, you can utilize any programming language to make cryptocurrency digital money, however, the most widely recognized are C, C++, Java, Python, Perl. The beauty of cryptocurrencies is that you can literally have access to the entire Bitcoin and Ethereum open-source programming scripts, and create your alternate coin (altcoin).
Question 3:
Hello all, I want to know about the current status of the European Union Blockchain initiative in currency or public identity.
Block.co Team Answer:
Please refer to the European Services Blockchain Infrastructure (EBSI) website.
Question 4:
Mining is also the process of confirmation of transactions in the Bitcoin Blockchain. What is the process of confirmation of transactions in the Blockchain of an Organization? How do we call it?
Block.co Team Answer:
That would depend on the specific consensus algorithm used for the confirmation of transactions. The consensus algorithm is part of the blockchain protocol that defines the rules on how consensus is reached on that blockchain. In order to participate, entities on the blockchain must obey and follow the same consensus algorithm. Make sure to check our glossary for more information.
Question 5:
How does a small business implement blockchain into its current non-blockchain software systems? Who do they hire to install it?
Block.co Team Answer:
It is easy when there are APIs to connect the various software. For more information, you can check Block.co API.
Question 6:
What is your opinion on digitizing developing economies like India by using AI and blockchain?
Block.co Team Answer:
Watch a very interesting webinar on the matter by Mr. Prasanna:
Question 7:
Blockchain technologies have been around since 2008. What would you say has been the biggest obstacle in widespread adoption?
Block.co Team Answer:
In our opinion, the biggest obstacles are volatile cryptoasset prices, complicated UIs, undefined blockchain technology standards. Moreover, the legislation around the technologies is still now being developed and does not offer legal certainty for broader adoption.
Question 8:
Limitations to Blockchain Usability in the Public Sector?
Block.co Team Answer:
Blockchain in the Public Sector, like any other innovative concept with big potential, cannot be a solution to every problem. Users and developers are still figuring out technological and managerial challenges. From a technological perspective, some aspects such as platform scalability, validation methods, data standardization, and systems integration must still be addressed. From a managerial point of view, the questions include business model transformation, incentive structure, and transaction scale, and maturity. Read more here.
Question 9:
How can these blockchain initiatives be practical for the African context
Block.co Team Answer:
As long as the internet infrastructure is in place, these blockchain initiatives may have the same benefits for the African region.
Question 10:
What are some compelling use cases you’ve seen lately, and how do they serve to further legitimize blockchain as a solution?
Block.co Team Answer:
You can see the global trends from all around the world when it comes to further legitimization as a solution, with China leading the way. Read more here.
Question 11:
How does digital currency manage the issue of money laundering?
Block.co Team Answer:
Depends under which context you are looking at the term digital currency. A digital currency usually refers to a balance or a record stored in a distributed database, in an electronic computer database, within digital files or a stored-value card. Some examples of digital currencies are cryptocurrencies, virtual currencies, central bank digital currencies (CBDCs), and e-Cash. The Financial Action Task Force (FATF) is an intergovernmental body established in 1989 on the initiative of the G7 to develop policies to fight money laundering. Since 2001 FATF is also looking into terrorism financing. The objectives of FATF are to set standards and promote effective implementation of legal, regulatory and operational measures for combating money laundering, terrorist financing, and other related threats to the integrity of the international financial system. FATF is a “policy-making body” that works to generate the necessary political will to bring about national legislative and regulatory reforms in these areas. FATF monitors progress in implementing its Recommendations through “peer reviews” (“mutual evaluations”) of member countries. It is the global watchdog for anti-money laundering & counter-terrorist finance. In June 2019, it updated its guidance paper for Virtual Assets Service Providers (VASPs) regarding the transfer of digital assets. There was an insertion of a new interpretive note that sets out the application of the FATF Standards to virtual asset activities and service providers. To apply FATF Recommendations, countries should consider virtual assets as “property,” “proceeds,” “funds,” “funds or other assets,” or other “corresponding value.” Countries should apply the relevant measures under the FATF Recommendations to virtual assets and virtual asset service providers (VASPs). Read more about the FATF recommendations here).

https://preview.redd.it/58tt7mt1pld51.png?width=1920&format=png&auto=webp&s=d24811c4864ebf02cb9aacc8d6b877a1fbc3756b
Question 12:
To what extent can blockchain be used to improve the privacy of healthcare?
Block.co team Answer:
Please refer to our previous webcast, blog, and articles for more information.
Question 13:
What is Blockchain technology in Shipping?
Block.co team Answer:
The shipping sector has been in the hold of phony maritime institutes charging exorbitant fees via agents, issuing certificates to candidates who do not have the imperative attendance, or those candidates who just pay the fees for the course and ask for the certificate. In view of these fake accreditations, the possibility exists that someone could be harmed or killed, and we could face any number of potential ecological disasters. Having the option to easily verify the genuine origin of a certificate by an approved maritime center is foremost for shipping companies to fast-track their operation and streamline their labor.
Question 14:
Different uses of blockchain other than cryptocurrency?
Block.co team Answer:
Please refer to our blog and glossary.
Question 15:
Upcoming trends in Blockchain concerning Advertising, Marketing, and Public Relations in the Public and Private sectors.
Block.co Team Answer:
Regarding the application of blockchain technology to media copyrights, please see Block.co use case proposal during the Bloomen Ideathon.

https://preview.redd.it/48zc8j38pld51.png?width=3622&format=png&auto=webp&s=79987d1dc7eb8d0c8e32dbce8680b17801d0d244
Question 16:
How to create a decentralized blockchain?
Block.co Team Answer:
An excessive number of individuals feel that blockchain is some supernatural innovation that makes up a decentralized system. In truth, this innovation only enables decentralization. Which means, it permits cryptocurrency to work in a decentralized way. Yet, it doesn’t give any guarantees that it will work that way. Along these lines, it’s really, some outer variables that decide genuine decentralization. Technology, itself never really guarantees it. That is the reason it’s a mistake to expect that if it’s a blockchain — it’s decentralized. From a technical perspective, both blockchains, centralized, and decentralized are comparative, as they take work on distributed peer to peer to network. This implies every node is individually responsible to verify and store the shared ledger. Both Blockchains utilize either a proof-of-work or proof-of-stake mechanisms to make a solitary record and they have to give upper and lower limits on the security and productivity of the system. For more information please refer to our infographic.
Question 17:
Dubai government Blockchain implementation progress?
Block.co Team Answer:
You can see more information here.
Question 18:
How Blockchain and IoT can be integrated to secure data being transmitted through IoT devices.
Block.co Team Answer:
You can read more about it here.
Question 19:
How can the Nigerian government use Blockchain to effectively implement its existing launched eGovernment master plan?
Block.co Team Answer:
Perhaps it can draw its attention to the initiatives of Dubai, Estonia, and Malta to prepare an implementation framework.
Question 20:
What impact is blockchain going to have in today world of business especially in the financial sector
Block.co Team Answer:
Please refer to our recent article titled Benefits of Blockchain Technology in the Banking Industry.
Question 21:
Is Blockchain Technology affect individuals?
Block.co Team Answer:
The social effect of blockchain innovation has just started to be acknowledged and this may simply be a hint of something larger. Cryptocurrencies have raised questions over financial services through digital wallets, and while considering that there are in excess of 3,5 billion individuals on the planet today without access to banking, such a move is surely impactful. Maybe the move for cryptocurrencies will be simpler for developing nations than the process of fiat cash and credit cards. It is like the transformation that developing nations had with mobile phones. It was simpler to acquire mass amounts of mobile phones than to supply another infrastructure for landlines telephones. In addition to giving the underprivileged access to banking services, greater transparency could also raise the profile and effectiveness of charities working in developing countries that fall under corrupt or manipulative governments.
An expanded degree of trust in where the cash goes and whose advantages would without a doubt lead to expanded commitments and backing for the poor in parts of the world that are in urgent need of help. Blockchain technology is well placed to remove the possibility of vote-apparatus and the entirety of different negatives related to the current democratic procedure. Obviously, with new innovation, there are new obstacles and issues that will arise, yet the cycle goes on and those new issues will be comprehended with progressively modern arrangements. A decentralized record would give the entirety of the fundamental information to precisely record votes on an anonymous basis, and check the exactness and whether there had been any manipulation of the voting procedure.
Question 22:
As Andreas Antonopoulos often says in his MOOC: ”is a blockchain even needed?” Ie. Are there better methods?
Block.co Team Answer:
In combination with nascent technologies, IoT, distributed computing, and distributed ledger technologies, governments can provide inventive services and answers for the citizens and local municipalities. Blockchain can provide the component to create a safe framework to deal with these functions. In particular, it can provide a safe interoperable infrastructure that permits all smart city services and capacities to work past presently imagined levels. On the off chance that there were better techniques, they would be researched.
Question 23:
Would any of this be also applicable to the educational sector (as part of the general public sector), and if so in which way?
Block.co Team Answer:
Yes, please refer to our Webcast on Education and our blog post.
Question 24:
Will we be able to get a hold of this recording upon completion of the meeting?
Block.co Team Answer:
Yes, here is a link to the recording of our webcast Blockchain in the Public Sector.
Question 25:
Was wondering if there are any existing universal framework in governing the blockchain technology?
Block.co Team Answer:
The short answer is NO, as this framework is currently being prepared in collaboration with the various Member States.
We would like to thank everyone for attending our webcast and hoping to interact with you in future webinars. If you would like to watch the webinar again, then click here!
For more info, contact Block.co directly or email at [[email protected]](mailto:[email protected]).
Tel +357 70007828
Get the latest from Block.co, like and follow us on social media:
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submitted by BlockDotCo to u/BlockDotCo [link] [comments]

Anyone still under the illusion of Microsoft having been transformed into a kinder, more mutually beneficial partner, please read this patent.

WO2020060606 - CRYPTOCURRENCY SYSTEM USING BODY ACTIVITY DATA
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2020060606&tab=PCTDESCRIPTION
Before reading the following excerpts, keep this sequence of events in mind:
Master Slave (and we're not referring to HDDs here)
Step one: patent technology
Step two: sell slave IoT devices to consumers who readily purchase them especially after being promised that they'll be rewarded in cryotocurrency for their data.
Step three: collect data via Azure on unsuspecting human subjects' fMRI, EEG, body temperatures, EKG, sleep data, digitized health care information, consumer purchasing habits, reading and viewing preferences, social media activity and correlate with activities performed (tasks).
Step four: Use data to refine AI to profile human behavior, predict behavior and refine mind reading capabilities.
This article is actually incorporated in the patent!
https://news.berkeley.edu/2011/09/22/brain-movies/ Scientists use brain imaging to reveal the movies in our mind
Step five: Institute centralized global cryptocurrency financial system with no other alternatives in which to transact legally.
https://www.reddit.com/Bitcoin/comments/4nag4b/1988_economist_cover_predicting_a_world_currency/
https://www.economist.com/finance-and-economics/1998/09/24/one-world-one-money
Step six: To understand step six, Read George Orwell's "1984" or review the concept of an individual's freedoms being based not on the concept of natural rights but on their social credit scores.
Thank you Microsoft, Google, Apple, Amazon, Facebook.
Now the patent excerpts:
CRYPTOCURRENCY SYSTEM USING BODY ACTIVITY DATA
BACKGROUND [0001] A virtual currency (also known as a digital currency) is a medium of exchange implemented through the Internet generally, not tied to a specific government-backed “flat” (printed) currency such as the U.S. dollar or the Euro, and typically designed to allow instantaneous transactions and borderless transfer of ownership. One example of virtual currency is cryptocurrency, wherein cryptography is used to secure transactions and to control the creation of new units. [0002] Several cryptocurrencies exist. Among these, the most well known is a blockchain-based cryptocurrency. Most blockchain-based cryptocurrency is decentralized in the sense that it has no central point of control.
However, blockchain-based cryptocurrency can also be implemented in a centralized system having a central point of control over the cryptocurrency.
Bitcoin is one of the examples of blockchain-based cryptocurrency. It is described in a 2008 article by Satoshi Nakamoto, named“Bitcoin: A peer-to-Peer Electronic Cash System”.
[0003] A blockchain is a data structure that stores a list of transactions and can be thought of as a distributed electronic ledger that records transactions between source identifier(s) and destination identifier(s). The transactions are bundled into blocks and every block (except for the first block) refers back to or is linked to a prior block in the blockchain. Computer resources (or nodes, etc.) maintain the blockchain and cryptographically validate each new block and the transactions contained in the corresponding block. This validation process includes computationally solving a difficult problem that is also easy to verify and is sometimes called a“proof-of-work”. This process is referred to as“mining”. The mining may be a random process with low probability so that a lot of trial and error is required to solve a computationally difficult problem. Accordingly, the mining may require enormous amounts of computational energy. [0004] It is with respect to these and other general considerations that the following embodiments have been described. Also, although relatively specific problems have been discussed, it should be understood that the embodiments should not be limited to solving the specific problems identified in the background.
SUMMARY
[0005] Some exemplary embodiments of the present disclosure may use human body activity associated with a task provided to a user as a solution to“mining” challenges in cryptocurrency systems. For example, a brain wave or body heat emitted from the user when the user performs the task provided by an information or service provider, such as viewing advertisement or using certain internet services, can be used in the mining process. Instead of massive computation work required by some conventional cryptocurrency systems, data generated based on the body activity of the user can be a proof-of-work, and therefore, a user can solve the computationally difficult problem unconsciously. Accordingly, certain exemplary embodiments of the present disclosure may reduce computational energy for the mining process as well as make the mining process faster.
[0006] Systems, methods, and hardware aspects of computer readable storage media are provided herein for a cryptocurrency system using human body activity data. According to various embodiments of the present disclosure, a server may provide a task to a device of a user which is communicatively coupled to the server. A sensor communicatively coupled to or comprised in the device of the user may sense body activity of the user. Body activity data may be generated based on the sensed body activity of the user. A cryptocurrency system communicatively coupled to the device of the user may verify whether or not the body activity data satisfies one or more conditions set by the cryptocurrency system, and award cryptocurrency to the user whose body activity data is verified.
[0007] Examples are implemented as a computer process, a computing system, or as an article of manufacture such as a device, computer program product, or computer readable medium. According to one aspect, the computer program product is a computer storage medium readable by a computer system and encoding a computer program comprising instructions for executing a computer process. [0008] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
decentralized cryptocurrency networks or databases.
[0021] FIG. 1 illustrates an example environment 100 in which some exemplary embodiments of the present disclosure may be practiced. The example environment 100 includes, but is not limited to, at least one of task server 110, communication network 120, user device 130, sensor 140, and cryptocurrency system 150. [0022] Task server 110 may provide one or more tasks to user device 130 over communication network 120. For example, task server 110 may be at least one of a web server delivering or serving up web pages, an application server handling application operations between users and applications or databases, a cloud server, a database server, a file server, a service server, a game server implementing games or services for a game, and a media server delivering media such as streaming video or audio. The tasks provided by task server 110 will be discussed in more detail below.
[0023] Alternatively, cryptocurrency system 150 may provide one or more tasks to user device 130. For example, in a decentralized cryptocurrency network, the tasks may be proposed to user device 130 by miners (e.g. compute resources or nodes 210 of FIG. 2). In another example, in a centralized cryptocurrency system, a cryptocurrency server may send the tasks to user device 130.
[0024] Communication network 120 may include any wired or wireless connection, the internet, or any other form of communication. Although one network 120 is identified in FIG. 1, communication network 120 may include any number of different communication networks between any of the server, devices, resource and system shown in FIGS. 1 and 2 and/or other servers, devices, resources and systems described herein. Communication network 120 may enable communication between various computing resources or devices, servers, and systems. Various implementations of communication network 120 may employ different types of networks, for example, but not limited to, computer networks, telecommunications networks (e.g., cellular), mobile wireless data networks, and any combination of these and/or other networks. [0025] User device 130 may include any device capable of processing and storing data/information and communicating over communication network 120. For example, user device 130 may include personal computers, servers, cell phones, tablets, laptops, smart devices (e.g. smart watches or smart televisions). An exemplary embodiment of user device 130 is illustrated in FIG. 6.
[0026] Sensor 140 may be configured to sense the body activity of user 145. As illustrated in FIG. 1, sensor 140 may be a separate component from user device 130 and be operably and/or communicatively connected to user device 130. Alternatively, sensor 140 may be included and integrated in user device 130. For example, user device 130 may be a wearable device having sensor 140 therein. The sensor 140 may transmit information/data to user device 130. Sensor 140 may include, for example, but not limited to, functional magnetic resonance imaging (fMRI) scanners or sensors, electroencephalography (EEG) sensors, near infrared spectroscopy (NIRS) sensors, heart rate monitors, thermal sensors, optical sensors, radio frequency (RF) sensors, ultrasonic sensors, cameras, or any other sensor or scanner that can measure or sense body activity or scan human body. For instance, the fMRI may measure body activity by detecting changes associated with blood flow. The fMRI may use a magnetic field and radio waves to create detailed images of the body (e.g. blood flow in the brain to detect areas of activity). The material (http://news.berkely.edu/20l l/09/22/brain-movies/) shows one example of how the fMRI can measure brain activity associated with visual information and generate image data.
[0027] Cryptocurrency system 150 may include one or more processors for processing commands and one or more memories storing information in one or more cryptocurrency data structures. In some embodiments, cryptocurrency system 150 may be a centralized cryptocurrency system or network, for example, but not limited to, a server which may be privately run by a third party entity or the same entity that is running the task server 110. In other embodiments, cryptocurrency system 150 may be a publically accessible network system (e.g., a distributed decentralized computing system).
https://news.berkeley.edu/2011/09/22/brain-movies/ Scientists use brain imaging to reveal the movies in our mind
WO2020060606 - CRYPTOCURRENCY SYSTEM USING BODY ACTIVITY DATA
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2020060606&tab=PCTDESCRIPTION
Applicants * MICROSOFT TECHNOLOGY LICENSING, LLC[US/US]; One Microsoft Way Redmond, Washington 98052-6399, US
CRYPTOCURRENCY SYSTEM USING BODY ACTIVITY DATA
BACKGROUND [0001] A virtual currency (also known as a digital currency) is a medium of exchange implemented through the Internet generally, not tied to a specific government-backed “flat” (printed) currency such as the U.S. dollar or the Euro, and typically designed to allow instantaneous transactions and borderless transfer of ownership. One example of virtual currency is cryptocurrency, wherein cryptography is used to secure transactions and to control the creation of new units. [0002] Several cryptocurrencies exist. Among these, the most well known is a blockchain-based cryptocurrency. Most blockchain-based cryptocurrency is decentralized in the sense that it has no central point of control.
However, blockchain-based cryptocurrency can also be implemented in a centralized system having a central point of control over the cryptocurrency.
Bitcoin is one of the examples of blockchain-based cryptocurrency. It is described in a 2008 article by Satoshi Nakamoto, named“Bitcoin: A peer-to-Peer Electronic Cash System”.
[0003] A blockchain is a data structure that stores a list of transactions and can be thought of as a distributed electronic ledger that records transactions between source identifier(s) and destination identifier(s). The transactions are bundled into blocks and every block (except for the first block) refers back to or is linked to a prior block in the blockchain. Computer resources (or nodes, etc.) maintain the blockchain and cryptographically validate each new block and the transactions contained in the corresponding block. This validation process includes computationally solving a difficult problem that is also easy to verify and is sometimes called a“proof-of-work”. This process is referred to as“mining”. The mining may be a random process with low probability so that a lot of trial and error is required to solve a computationally difficult problem. Accordingly, the mining may require enormous amounts of computational energy.
[0004] It is with respect to these and other general considerations that the following embodiments have been described. Also, although relatively specific problems have been discussed, it should be understood that the embodiments should not be limited to solving the specific problems identified in the background.
SUMMARY
[0005] Some exemplary embodiments of the present disclosure may use human body activity associated with a task provided to a user as a solution to“mining” challenges in cryptocurrency systems. For example, a brain wave or body heat emitted from the user when the user performs the task provided by an information or service provider, such as viewing advertisement or using certain internet services, can be used in the mining process. Instead of massive computation work required by some conventional cryptocurrency systems, data generated based on the body activity of the user can be a proof-of-work, and therefore, a user can solve the computationally difficult problem unconsciously. Accordingly, certain exemplary embodiments of the present disclosure may reduce computational energy for the mining process as well as make the mining process faster.
[0006] Systems, methods, and hardware aspects of computer readable storage media are provided herein for a cryptocurrency system using human body activity data. According to various embodiments of the present disclosure, a server may provide a task to a device of a user which is communicatively coupled to the server. A sensor communicatively coupled to or comprised in the device of the user may sense body activity of the user. Body activity data may be generated based on the sensed body activity of the user. A cryptocurrency system communicatively coupled to the device of the user may verify whether or not the body activity data satisfies one or more conditions set by the cryptocurrency system, and award cryptocurrency to the user whose body activity data is verified.
[0007] Examples are implemented as a computer process, a computing system, or as an article of manufacture such as a device, computer program product, or computer readable medium. According to one aspect, the computer program product is a computer storage medium readable by a computer system and encoding a computer program comprising instructions for executing a computer process.
[0008] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
decentralized cryptocurrency networks or databases. [0021] FIG. 1 illustrates an example environment 100 in which some exemplary embodiments of the present disclosure may be practiced. The example environment 100 includes, but is not limited to, at least one of task server 110, communication network 120, user device 130, sensor 140, and cryptocurrency system 150.
[0022] Task server 110 may provide one or more tasks to user device 130 over communication network 120. For example, task server 110 may be at least one of a web server delivering or serving up web pages, an application server handling application operations between users and applications or databases, a cloud server, a database server, a file server, a service server, a game server implementing games or services for a game, and a media server delivering media such as streaming video or audio. The tasks provided by task server 110 will be discussed in more detail below.
[0023] Alternatively, cryptocurrency system 150 may provide one or more tasks to user device 130. For example, in a decentralized cryptocurrency network, the tasks may be proposed to user device 130 by miners (e.g. compute resources or nodes 210 of FIG. 2). In another example, in a centralized cryptocurrency system, a cryptocurrency server may send the tasks to user device 130.
[0024] Communication network 120 may include any wired or wireless connection, the internet, or any other form of communication. Although one network 120 is identified in FIG. 1, communication network 120 may include any number of different communication networks between any of the server, devices, resource and system shown in FIGS. 1 and 2 and/or other servers, devices, resources and systems described herein. Communication network 120 may enable communication between various computing resources or devices, servers, and systems. Various implementations of communication network 120 may employ different types of networks, for example, but not limited to, computer networks, telecommunications networks (e.g., cellular), mobile wireless data networks, and any combination of these and/or other networks.
[0025] User device 130 may include any device capable of processing and storing data/information and communicating over communication network 120. For example, user device 130 may include personal computers, servers, cell phones, tablets, laptops, smart devices (e.g. smart watches or smart televisions).
An exemplary embodiment of user device 130 is illustrated in FIG. 6.
[0026] Sensor 140 may be configured to sense the body activity of user 145. As illustrated in FIG. 1, sensor 140 may be a separate component from user device 130 and be operably and/or communicatively connected to user device 130. Alternatively, sensor 140 may be included and integrated in user device 130. For example, user device 130 may be a wearable device having sensor 140 therein. The sensor 140 may transmit information/data to user device 130. Sensor 140 may include, for example, but not limited to, functional magnetic resonance imaging (fMRI) scanners or sensors, electroencephalography (EEG) sensors, near infrared spectroscopy (NIRS) sensors, heart rate monitors, thermal sensors, optical sensors, radio frequency (RF) sensors, ultrasonic sensors, cameras, or any other sensor or scanner that can measure or sense body activity or scan human body. For instance, the fMRI may measure body activity by detecting changes associated with blood flow. The fMRI may use a magnetic field and radio waves to create detailed images of the body (e.g. blood flow in the brain to detect areas of activity). The material (http://news.berkely.edu/20l l/09/22/brain-movies/) shows one example of how the fMRI can measure brain activity associated with visual information and generate image data.
[0027] Cryptocurrency system 150 may include one or more processors for processing commands and one or more memories storing information in one or more cryptocurrency data structures. In some embodiments, cryptocurrency system 150 may be a centralized cryptocurrency system or network, for example, but not limited to, a server which may be privately run by a third party entity or the same entity that is running the task server 110. In other embodiments, cryptocurrency system 150 may be a publically accessible network system (e.g., a distributed decentralized computing system).
https://news.berkeley.edu/2011/09/22/brain-movies/ Scientists use brain imaging to reveal the movies in our mind
submitted by snowboardnirvana to MVIS [link] [comments]

How to Create Your Own Cryptocurrency Using Python 2020

A blockchain is a public database that irreversibly documents and authenticates the possession and transmission of digital assets. Digital currencies, like Bitcoin and Ethereum, are based on this concept. Blockchain is an exciting technology that you can use to transform the capabilities of your applications.
Of late, we’ve been seeing governments, organizations, and individuals using the blockchain technology to create their own cryptocurrencies—and avoid being left behind. Notably, when Facebook proposed its own cryptocurrency, called Libra, the announcement stirred many waters across the world.

What if you could also follow suit and create your own version of a cryptocurrency?

I thought about this and decided to develop an algorithm that creates a crypto.
I decided to call the cryptocurrency fccCoin.
In this tutorial, I’m going to illustrate the step-by-step process I used to build the digital currency (I used the object-oriented concepts of the Python programming language).
Here is the basic blueprint of the blockchain algorithm for creating the fccCoin:
class Block: def __init__(): #first block class pass def calculate_hash(): #calculates the cryptographic hash of every block class BlockChain: def __init__(self): # constructor method pass def construct_genesis(self): # constructs the initial block pass def construct_block(self, proof_no, prev_hash): # constructs a new block and adds it to the chain pass u/staticmethod def check_validity(): # checks whether the blockchain is valid pass def new_data(self, sender, recipient, quantity): # adds a new transaction to the data of the transactions pass u/staticmethod def construct_proof_of_work(prev_proof): # protects the blockchain from attack pass u/property def last_block(self): # returns the last block in the chain return self.chain[-1]
Now, let me explain what is taking place…
1. Building the first Block class A blockchain comprises of several blocks that are joined to each other (that sounds familiar, right?).
The chaining of blocks takes place such that if one block is tampered with, the rest of the chain becomes invalid.
In applying the above concept, I created the following initial block class
import hashlib import time class Block: def __init__(self, index, proof_no, prev_hash, data, timestamp=None): self.index = index self.proof_no = proof_no self.prev_hash = prev_hash self.data = data self.timestamp = timestamp or time.time() u/property def calculate_hash(self): block_of_string = “{}{}{}{}{}”.format(self.index, self.proof_no, self.prev_hash, self.data, self.timestamp) return hashlib.sha256(block_of_string.encode()).hexdigest() def __repr__(self): return “{} – {} – {} – {} – {}”.format(self.index, self.proof_no, self.prev_hash, self.data, self.timestamp)
As you can see from the code above, I defined the __init__() function, which will be executed when the Block class is being initiated, just like in any other Python class.
I provided the following parameters to the initiation function:
self—this refers to the instance of the Block class, making it possible to access the methods and attributes associated with the class; index—this keeps track of the position of the block within the blockchain; proof_no—this is the number produced during the creation of a new block (called mining); prev_hash—this refers to the hash of the previous block within the chain; data—this gives a record of all transactions completed, such as the quantity bought; timestamp—this places a timestamp for the transactions. The second method in the class, calculate_hash, will generate the hash of the blocks using the above values. The SHA-256 module is imported into the project to assist in obtaining the hashes of the blocks.
After the values have been inputted into the cryptographic hash algorithm, the function will return a 256-bit string representing the contents of the block.
This is how security is achieved in blockchains—every block will have a hash and that hash will rely on the hash of the previous block.
As such, if someone tries to compromise any block in the chain, the other blocks will have invalid hashes, leading to disruption of the entire blockchain network.
Ultimately, a block will look like this:
{ “index”: 2, “proof”: 21, “prev_hash”: “6e27587e8a27d6fe376d4fd9b4edc96c8890346579e5cbf558252b24a8257823”, “transactions”: [ {‘sender’: ‘0’, ‘recipient’: ‘Quincy Larson’, ‘quantity’: 1} ], “timestamp”: 1521646442.4096143 }
2. Building the Blockchain class The main idea of a blockchain, just as the name implies, involves “chaining” several blocks to one another.
Therefore, I’m going to construct a Blockchain class that will be useful in managing the workings of the whole chain. This is where most of the action is going to take place.
The Blockchain class will have various helper methods for completing various tasks in the blockchain.
Let me explain the role of each of the methods in the class.
a. Constructor method This method ensures the blockchain is instantiated.
class BlockChain: def __init__(self): self.chain = [] self.current_data = [] self.nodes = set() self.construct_genesis()
Here are the roles of its attributes:
b. Constructing the genesis block The blockchain requires a construct_genesis method to build the initial block in the chain. In the blockchain convention, this block is special because it symbolizes the start of the blockchain.
In this case, let’s construct it by simply passing some default values to the construct_block method.
I gave both proof_no and prev_hash a value of zero, although you can provide any value you want.
def construct_genesis(self): self.construct_block(proof_no=0, prev_hash=0) def construct_block(self, proof_no, prev_hash): block = Block( index=len(self.chain), proof_no=proof_no, prev_hash=prev_hash, data=self.current_data) self.current_data = [] self.chain.append(block) return block
c. Constructing new blocks
The construct_block method is used for creating new blocks in the blockchain.
Here is what is taking place with the various attributes of this method:
d. Checking validity
The check_validity method is important in assessing the integrity of the blockchain and ensuring anomalies are absent.
As mentioned earlier, hashes are essential for the security of the blockchain as even the slightest change in the object will lead to the generation of a completely new hash.
Therefore, this check_validity method uses if statements to check whether the hash of every block is correct.
It also verifies if every block points to the right previous block, through comparing the value of their hashes. If everything is correct, it returns true; otherwise, it returns false.
u/staticmethod def check_validity(block, prev_block): if prev_block.index + 1 != block.index: return False elif prev_block.calculate_hash != block.prev_hash: return False elif not BlockChain.verifying_proof(block.proof_no, prev_block.proof_no): return False elif block.timestamp <= prev_block.timestamp: return False return True
e. Adding data of transactions
The new_data method is used for adding the data of transactions to a block. It’s a very simple method: it accepts three parameters (sender’s details, receiver’s details, and quantity) and append the transaction data to self.current_data list.
Anytime a new block is created, this list is allocated to that block and reset once more as explained in the construct_block method.
Once the transaction data has been added to the list, the index of the next block to be created is returned.
This index is calculated by adding 1 to the index of the current block (which is the last in the blockchain). The data will assist a user in submitting the transaction in future.
def new_data(self, sender, recipient, quantity): self.current_data.append({ ‘sender’: sender, ‘recipient’: recipient, ‘quantity’: quantity }) return True
f. Adding proof of work
Proof of work is a concept that prevents the blockchain from abuse. Simply, its objective is to identify a number that solves a problem after a certain amount of computing work is done.
If the difficulty level of identifying the number is high, it discourages spamming and tampering with the blockchain.
In this case, we’ll use a simple algorithm that discourages people from mining blocks or creating blocks easily.
u/staticmethod def proof_of_work(last_proof): ”’this simple algorithm identifies a number f’ such that hash(ff’) contain 4 leading zeroes f is the previous f’ f’ is the new proof ”’ proof_no = 0 while BlockChain.verifying_proof(proof_no, last_proof) is False: proof_no += 1 return proof_no u/staticmethod def verifying_proof(last_proof, proof): #verifying the proof: does hash(last_proof, proof) contain 4 leading zeroes? guess = f'{last_proof}{proof}’.encode() guess_hash = hashlib.sha256(guess).hexdigest() return guess_hash[:4] == “0000”
g. Getting the last block
Lastly, the latest_block method is a helper method that assists in obtaining the last block in the blockchain. Remember that the last block is actually the current block in the chain.
u/property def latest_block(self): return self.chain[-1]
Let’s sum everything together
Here is the entire code for creating the fccCoin cryptocurrency.
You can also get the code on this GitHub repository.
import hashlib import time class Block: def __init__(self, index, proof_no, prev_hash, data, timestamp=None): self.index = index self.proof_no = proof_no self.prev_hash = prev_hash self.data = data self.timestamp = timestamp or time.time() u/property def calculate_hash(self): block_of_string = “{}{}{}{}{}”.format(self.index, self.proof_no, self.prev_hash, self.data, self.timestamp) return hashlib.sha256(block_of_string.encode()).hexdigest() def __repr__(self): return “{} – {} – {} – {} – {}”.format(self.index, self.proof_no, self.prev_hash, self.data, self.timestamp) class BlockChain: def __init__(self): self.chain = [] self.current_data = [] self.nodes = set() self.construct_genesis() def construct_genesis(self): self.construct_block(proof_no=0, prev_hash=0) def construct_block(self, proof_no, prev_hash): block = Block( index=len(self.chain), proof_no=proof_no, prev_hash=prev_hash, data=self.current_data) self.current_data = [] self.chain.append(block) return block u/staticmethod def check_validity(block, prev_block): if prev_block.index + 1 != block.index: return False elif prev_block.calculate_hash != block.prev_hash: return False elif not BlockChain.verifying_proof(block.proof_no, prev_block.proof_no): return False elif block.timestamp <= prev_block.timestamp: return False return True def new_data(self, sender, recipient, quantity): self.current_data.append({ ‘sender’: sender, ‘recipient’: recipient, ‘quantity’: quantity }) return True u/staticmethod def proof_of_work(last_proof): ”’this simple algorithm identifies a number f’ such that hash(ff’) contain 4 leading zeroes f is the previous f’ f’ is the new proof ”’ proof_no = 0 while BlockChain.verifying_proof(proof_no, last_proof) is False: proof_no += 1 return proof_no u/staticmethod def verifying_proof(last_proof, proof): #verifying the proof: does hash(last_proof, proof) contain 4 leading zeroes? guess = f'{last_proof}{proof}’.encode() guess_hash = hashlib.sha256(guess).hexdigest() return guess_hash[:4] == “0000” u/property def latest_block(self): return self.chain[-1] def block_mining(self, details_miner): self.new_data( sender=”0″, #it implies that this node has created a new block receiver=details_miner, quantity= 1, #creating a new block (or identifying the proof number) is awarded with 1 ) last_block = self.latest_block last_proof_no = last_block.proof_no proof_no = self.proof_of_work(last_proof_no) last_hash = last_block.calculate_hash block = self.construct_block(proof_no, last_hash) return vars(block) def create_node(self, address): self.nodes.add(address) return True u/staticmethod def obtain_block_object(block_data): #obtains block object from the block data return Block( block_data[‘index’], block_data[‘proof_no’], block_data[‘prev_hash’], block_data[‘data’], timestamp=block_data[‘timestamp’])
Now, let’s test our code to see if it works.
blockchain = BlockChain() print(“***Mining fccCoin about to start***”) print(blockchain.chain) last_block = blockchain.latest_block last_proof_no = last_block.proof_no proof_no = blockchain.proof_of_work(last_proof_no) blockchain.new_data( sender=”0″, #it implies that this node has created a new block recipient=”Quincy Larson”, #let’s send Quincy some coins! quantity= 1, #creating a new block (or identifying the proof number) is awarded with 1 ) last_hash = last_block.calculate_hash block = blockchain.construct_block(proof_no, last_hash) print(“***Mining fccCoin has been successful***”) print(blockchain.chain)
It worked!
Here is the output of the mining process:
***Mining fccCoin about to start*** [0 – 0 – 0 – [] – 1566930640.2707076] ***Mining fccCoin has been successful*** [0 – 0 – 0 – [] – 1566930640.2707076, 1 – 88914 – a8d45cb77cddeac750a9439d629f394da442672e56edfe05827b5e41f4ba0138 – [{‘sender’: ‘0’, ‘recipient’: ‘Quincy Larson’, ‘quantity’: 1}] – 1566930640.5363243]
Conclusion
There you have it!
That’s how you could create your own blockchain using Python.
Let me say that this tutorial just demonstrates the basic concepts for getting your feet wet in the innovative blockchain technology.
If this coin were deployed as-is, it could not meet the present market demands for a stable, secure, and easy-to-use cryptocurrency.
Therefore, it can still be improved by adding additional features to enhance its capabilities for mining and sending financial transactions.
Nonetheless, it’s a good starting point if you decide to make your name known in the amazing world of cryptos.
If you have any comments or questions, please post them below.
Happy (crypto) coding!
Source: Cryptoors
submitted by djkloud to CryptoTechnology [link] [comments]

Microsoft patents scheme to usher in technocratic fascism via data from IoT sensor devices and centralized cryptocurrency system

WO2020060606 - CRYPTOCURRENCY SYSTEM USING BODY ACTIVITY DATA
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2020060606&tab=PCTDESCRIPTION
Before reading the following excerpts, keep this sequence of events in mind:
Master Slave (and we're not referring to HDDs here)
Step one: patent technology
Step two: sell slave IoT devices to consumers who readily purchase them especially after being promised that they'll be rewarded in cryotocurrency for their data.
Step three: collect data via Microsoft Azure on unsuspecting human subjects' fMRI, EEG, body temperatures, EKG, sleep data, digitized health care information, consumer purchasing habits, reading and viewing preferences, social media activity and correlate with activities performed (tasks).
Step four: Use data to refine AI to profile human behavior, predict behavior and refine mind reading capabilities.
This article is actually incorporated in the patent!
https://news.berkeley.edu/2011/09/22/brain-movies/ Scientists use brain imaging to reveal the movies in our mind
Step five: Institute centralized global cryptocurrency financial system with no other alternatives in which to transact legally.
https://www.reddit.com/Bitcoin/comments/4nag4b/1988_economist_cover_predicting_a_world_currency/
https://www.economist.com/finance-and-economics/1998/09/24/one-world-one-money
Step six: To understand step six, read George Orwell's "1984" or review the concept of an individual's freedoms being based not on the concept of natural rights but on their social credit scores.
Thank you Microsoft, Google, Apple, Amazon, Facebook.
Now the patent excerpts:
CRYPTOCURRENCY SYSTEM USING BODY ACTIVITY DATA BACKGROUND [0001] A virtual currency (also known as a digital currency) is a medium of exchange implemented through the Internet generally, not tied to a specific government-backed “flat” (printed) currency such as the U.S. dollar or the Euro, and typically designed to allow instantaneous transactions and borderless transfer of ownership. One example of virtual currency is cryptocurrency, wherein cryptography is used to secure transactions and to control the creation of new units. [0002] Several cryptocurrencies exist. Among these, the most well known is a blockchain-based cryptocurrency. Most blockchain-based cryptocurrency is decentralized in the sense that it has no central point of control.
However, blockchain-based cryptocurrency can also be implemented in a centralized system having a central point of control over the cryptocurrency.
Bitcoin is one of the examples of blockchain-based cryptocurrency. It is described in a 2008 article by Satoshi Nakamoto, named“Bitcoin: A peer-to-Peer Electronic Cash System”.
[0003] A blockchain is a data structure that stores a list of transactions and can be thought of as a distributed electronic ledger that records transactions between source identifier(s) and destination identifier(s). The transactions are bundled into blocks and every block (except for the first block) refers back to or is linked to a prior block in the blockchain. Computer resources (or nodes, etc.) maintain the blockchain and cryptographically validate each new block and the transactions contained in the corresponding block. This validation process includes computationally solving a difficult problem that is also easy to verify and is sometimes called a“proof-of-work”. This process is referred to as“mining”. The mining may be a random process with low probability so that a lot of trial and error is required to solve a computationally difficult problem. Accordingly, the mining may require enormous amounts of computational energy.
[0004] It is with respect to these and other general considerations that the following embodiments have been described. Also, although relatively specific problems have been discussed, it should be understood that the embodiments should not be limited to solving the specific problems identified in the background.
SUMMARY
[0005] Some exemplary embodiments of the present disclosure may use human body activity associated with a task provided to a user as a solution to“mining” challenges in cryptocurrency systems.
For example, a brain wave or body heat emitted from the user when the user performs the task provided by an information or service provider, such as viewing advertisement or using certain internet services, can be used in the mining process. Instead of massive computation work required by some conventional cryptocurrency systems, data generated based on the body activity of the user can be a proof-of-work, and therefore, a user can solve the computationally difficult problem unconsciously. Accordingly, certain exemplary embodiments of the present disclosure may reduce computational energy for the mining process as well as make the mining process faster.
[0006] Systems, methods, and hardware aspects of computer readable storage media are provided herein for a cryptocurrency system using human body activity data. According to various embodiments of the present disclosure, a server may provide a task to a device of a user which is communicatively coupled to the server. A sensor communicatively coupled to or comprised in the device of the user may sense body activity of the user. Body activity data may be generated based on the sensed body activity of the user. A cryptocurrency system communicatively coupled to the device of the user may verify whether or not the body activity data satisfies one or more conditions set by the cryptocurrency system, and award cryptocurrency to the user whose body activity data is verified.
[0007] Examples are implemented as a computer process, a computing system, or as an article of manufacture such as a device, computer program product, or computer readable medium. According to one aspect, the computer program product is a computer storage medium readable by a computer system and encoding a computer program comprising instructions for executing a computer process.
[0008] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. decentralized cryptocurrency networks or databases.
[0021] FIG. 1 illustrates an example environment 100 in which some exemplary embodiments of the present disclosure may be practiced. The example environment 100 includes, but is not limited to, at least one of task server 110, communication network 120, user device 130, sensor 140, and cryptocurrency system 150.
[0022] Task server 110 may provide one or more tasks to user device 130 over communication network 120. For example, task server 110 may be at least one of a web server delivering or serving up web pages, an application server handling application operations between users and applications or databases, a cloud server, a database server, a file server, a service server, a game server implementing games or services for a game, and a media server delivering media such as streaming video or audio. The tasks provided by task server 110 will be discussed in more detail below.
[0023] Alternatively, cryptocurrency system 150 may provide one or more tasks to user device 130. For example, in a decentralized cryptocurrency network, the tasks may be proposed to user device 130 by miners (e.g. compute resources or nodes 210 of FIG. 2). In another example, in a centralized cryptocurrency system, a cryptocurrency server may send the tasks to user device 130.
[0024] Communication network 120 may include any wired or wireless connection, the internet, or any other form of communication. Although one network 120 is identified in FIG. 1, communication network 120 may include any number of different communication networks between any of the server, devices, resource and system shown in FIGS. 1 and 2 and/or other servers, devices, resources and systems described herein. Communication network 120 may enable communication between various computing resources or devices, servers, and systems. Various implementations of communication network 120 may employ different types of networks, for example, but not limited to, computer networks, telecommunications networks (e.g., cellular), mobile wireless data networks, and any combination of these and/or other networks. [0025] User device 130 may include any device capable of processing and storing data/information and communicating over communication network 120. For example, user device 130 may include personal computers, servers, cell phones, tablets, laptops, smart devices (e.g. smart watches or smart televisions). An exemplary embodiment of user device 130 is illustrated in FIG. 6.
[0026] Sensor 140 may be configured to sense the body activity of user 145. As illustrated in FIG. 1, sensor 140 may be a separate component from user device 130 and be operably and/or communicatively connected to user device 130. Alternatively, sensor 140 may be included and integrated in user device 130. For example, user device 130 may be a wearable device having sensor 140 therein. The sensor 140 may transmit information/data to user device 130. Sensor 140 may include, for example, but not limited to, functional magnetic resonance imaging (fMRI) scanners or sensors, electroencephalography (EEG) sensors, near infrared spectroscopy (NIRS) sensors, heart rate monitors, thermal sensors, optical sensors, radio frequency (RF) sensors, ultrasonic sensors, cameras, or any other sensor or scanner that can measure or sense body activity or scan human body. For instance, the fMRI may measure body activity by detecting changes associated with blood flow. The fMRI may use a magnetic field and radio waves to create detailed images of the body (e.g. blood flow in the brain to detect areas of activity).
The material (http://news.berkely.edu/20ll/09/22/brain-movies/) shows one example of how the fMRI can measure brain activity associated with visual information and generate image data.
[0027] Cryptocurrency system 150 may include one or more processors for processing commands and one or more memories storing information in one or more cryptocurrency data structures. In some embodiments, cryptocurrency system 150 may be a centralized cryptocurrency system or network, for example, but not limited to, a server which may be privately run by a third party entity or the same entity that is running the task server 110. In other embodiments, cryptocurrency system 150 may be a publically accessible network system (e.g., a distributed decentralized computing system).
https://news.berkeley.edu/2011/09/22/brain-movies/ Scientists use brain imaging to reveal the movies in our mind
submitted by snowboardnirvana to conspiracy [link] [comments]

How Blockchain is important for App Developers?

With newer technologies being launched each day, the tendency to the adoption of such leading edge engineering methodologies has been boosting every industrial area. The present market situation is such, in the event that you have to remain in the opposition, you have to get the new components of innovation. In the present market, if you have to stay in the competition, you have to pick up the new elements of technology. With startups failing to implement them, mobile application experts are struggling to keep pace with such huge numbers of techs simultaneously, exploring the massive growth of the current industry seems like a needful task.
Over numerous years, block-chain has held its status as a progressive thought with positive perspectives for multiple industries. This digital ledger system became popular during the times of cryptocurrency, and since then, been praised for its secure and reliable approach. Block-chain includes features like peer-to-peer payment architecture, decentralization, and security which makes it fascinating for developers. In the field of mobile apps, block-chain serves as a bountiful example, to build applications that are free from frauds, data leaks, and security threats.
Given the circumstances, blockchain is a concept of developers, the practical applications of which are in the initial stages of development. However, once understood, it holds a tremendous capacity to revolutionize the market. This game-changing technology is an important trend for the mobile app industry.

What is Blockchain Technology?

The reliable system operates by transforming data across network steadily so that no participants in the system are able to hack or tamper the blocks distributed. The blocks formed with a cryptographically line that helps to prevent a reformed process from an unknown member.
This blockchain holds distinctive features of distributed ledger technology, which safely stores data over the peer-to-peer network. Blockchain ledgers can involve land documents, loans, integrity, assets, and inventory etc. that can be stored strongly, where everyone has permission to see yet can’t change the results shared.

How Does Blockchain Work?

A blockchain is a string of numerous blocks stored together. Each time a transaction occurs, it creates a new block and is stored in the digital ledger system.
The following points state how blockchain works-
  1. A transaction needs to happen. For instance, you bought something from the XYZ store. When you have made a purchase, a block is created for it. Now, every transaction is grouped with thousands of other transactions in the block.
  2. The transaction should be checked. That is the job for a network of computers. These systems verify whether a transaction occurred from the XYZ store. When they confirm details of the purchase, it is verified.
  3. The transaction has to be stored in the block. When your transaction is verified, along with its dollar amount, digital signature, and the XYZ store’s digital signature, all this information is stored in the block. This block then joins the other hundreds and thousands of blocks, like it.
  4. The block should be assigned a unique code/hash. Once the information is verified, it is provided with a unique identifying code, the hash. Once hashed, the block can then be added to the blockchain.
Each new block added to the blockchain is public. That implies anyone can see it. Details like who when were the block added, where was it added, and by whom was it added is visible to the users of the blockchain.

Does this Mean, Blockchain has a Public Infrastructure?

It is true, anyone can see the contents of the blockchain. In a blockchain, you can also connect your computers to the blockchain, as nodes. Along these lines, every computer in the blockchain network receives a copy of every block whenever it is updated. It’s like your News Feed, when there is an update, you see the new fresh content at the top. So, when everyone can view each information, where does the security feature in blockchain come from?
In a blockchain network, there are millions of copies of the same block. This implies each copy of the blockchain is identical. So, it’s not possible for anyone to keep a record of such huge numbers of events. If any programmer needs to even manipulate the data of any block, they should change every copy on the blockchain network. Also, since you don’t have any knowledge of the users making the transactions, its data, to any hacker or user, is completely anonymous.
Only those who hold details regarding the digital signature or the username can access the information in a block and understand it. In this way hacking and manipulation is something that can’t occur in a blockchain environment.

Why is Blockchain a Popular Concept for Mobile App Developers?

Blockchain was first referenced in BitcoinTalk, the largest forum committed to Bitcoin. Many-a-times blockchain is said to give a steady base to cryptocurrency operations. In the previous few years, it has gained tremendous popularity, as a technology database.
But, what invited its attention in the minds of the developers was its decentralized nature and secure access. Since then, blockchain has become a fascinating idea for developers. Surely, it leads to transparency, yet it decreases fraudulent transactions, and data tampering activities as well.
Application developers are using this technology to make digital payments more accessible, simple, and secure. The nature of peer-to-peer transactions makes it an ideal fit for banking applications that needs such a type of technology.
You can also know- A Complete Guide To Choose Block-chain Platform For Business Growth.

Blockchain can Reshape the Future for Mobile App Developers-

Blockchain provides an edge to all those people who like to indulge in digital payments rather than cash to cash transactions.

But why is blockchain said to be fit in today’s market scenario?

digital transformations are at its top in the 21st century. Each business has a digital store, and an ever increasing number of customers are accessing the online platforms, to enjoy everyday services as well.
The digital world is providing the right momentum to blockchain technology and has evoke its need in the market. Blockchain is becoming increasingly popular for mobile payment apps because of its exceptionally secured features.
Let us see common types of blockchain-based mobile apps-
1. Apps for exchanging cryptocurrencies- This way, a person is totally in control of the digital resources and perform trading transactions using them. Such applications can be used for a wide range of payments and transactions.
2. E-wallets- E-wallets that can store all the digital assets and money. You can carry out the transactions through the application powered by blockchain technology.
3. Apps that help you to track rates- cryptocurrency trades, market dynamics and other scope of blockchain services.
4. Retails applications with a background of blockchain technology allowing customers to pay using cryptocurrency and bitcoin.
Now, let’s look why blockchain is apt for mobile app developers-

1. Enhanced data protection and privacy –

Blockchain is known for its great security. Developers can use this tech, to create multiple protection layers into their data. The private keys to this data will be just assigned to the users, making it impossible for anyone without a decryption key, to manipulate the transaction details. Since it is a decentralized system, it keeps a replica of each transaction on its computer network. This reduces the risk of data loss as well. Since hackers won’t have any knowledge about the user’s data and their private key as well, no fraudulent or unauthorized activities can take place.

2. Data transparency is an advantage too-

In a blockchain, the information about every transaction is visible to everyone. This implies anyone can see the details in real-time. However, since the data is stored by digital names and signatures, it is mysterious to others. They can see the transaction but will not know who made it (the real name and personal information). This way, no one can change the information in a specific block. Blockchain stores all the data in public view. Hence, if the user makes any manipulations to their data also, it won’t go unnoticed. Log for each change is made in this digital ledger system.

3. Secure mobile payments –

Introducing blockchain with mobile app serve one central motto, securing digital payments. Since more and more people are opting contactless mobile payments, protecting them with blockchain’s secure architecture seems to be a good idea. Numerous developers are focussing on coding a a more secure and affordable mobile payments app.
Blockchain will help these developers in securing the infrastructure of similar mobile apps. Also, since thousands of nodes function, it is improbable that they will crash simultaneously. This also reduces the downtime of such applications.

4. No need for passwords anymore –

To deal with any application, you need a password and login-id to authenticate your users. There are a lot of issues related to use of passwords. Anyone can track it and if you forget your password, getting a new one is a tedious task. With blockchain, users don’t need any password. The network of computers connected validates a transaction. Also, since blockchain is built on cryptographic codes like a hash that uses a digital signature to unlock all the digital assets for the involved parties, the authentication systems of such applications will become immutable, irrefutable, and incorruptible. This makes the process of accessing your resources, a seamless experience.

5. Improves the Efficiency of apps –

For each mobile application you use, you need a third-party mediator for it. In a blockchain, you do not need any party to finish the transaction. This improves the effectiveness and the speed of transactions. As indicated by a report, blockchain-based transactions are 10 times faster than the bank ones. In a blockchain, every transaction is approved by a computer. Hence, dissimilar to a traditional bank that takes days to settle a transaction, blockchain can do it in 2-3 minutes.

6. It reduces the cost per transaction-

In normal transactions that include third-party apps, blockchain removes any such middlemen. Also, the intermediate parties charge per transaction that reaches completion using their portal. Blockchain doesn’t charge any such fee and still gets the transaction completed. The eviction of such mediators reduces the transactional costs for both, the business and the users.
submitted by SolaceInfotech to blockchaindeveloper [link] [comments]

opentimestamps with nano

Hi all,

I've been building a few applications integrating OpenTimeStamps, and quite frankly, it's been a bit annoying. Namely, it's not easy to embed into applications to verify data integrity, since I have to talk to an opentimestamp server, then wait for the block to be updated, and then update my database with the new information.

What I would prefer is to use the same hashing method that OpenTimeStamps uses, but instead of using bitcoin, just do an instant microtransaction to the hash with Nano and save the block (far less latency). The date is then public (like on Nanode), and one could validate that the file or string by checking the block.

Is something like this feasible? Are the Nano timestamps trustworthy? (https://cointelegraph.com/news/bitgrail-vs-nano-who-is-responsible-for-the-150-million-theft some complaints here) Any other thoughts? Thanks
submitted by koeng101 to nanocurrency [link] [comments]

PortBitX.COM White Paper

White Paper


We are a free society united by the basic idea of ​​freedom and justice, separated from geographical, religious, ethnic and gender prejudices, we reaffirm this document, and we promise to protect freedom and benefit people always and everywhere.

PortBitX Project

The PORTBITX project team creates a service whose main idea is to provide a mobile and convenient system where users and cryptocurrency owners can receive a wide range of services.

1 The essence of the project

The project team asks you to support the creation of a high-tech, simple, convenient and honest ecosystem for people who need to protect their rights and freedoms and use the right to be anonymous and financially independent.
The mission of the project is to create a service for storing and exchanging cryptocurrency assets, and also to become a tool allowing to conduct trading operations regardless of geographic location or language skills.
Advantages of the project:

2 State of affairs

Owing to ignorance or low awareness of people about the nature of cryptocurrency assets, cryptoindustry is mythologized in modern society. This applies to both ordinary people and officials in authority.
As a rule, in the minds of people there is more confidence in traditional financial instruments than in technology during their development, for example blockchain (the inability to change the information block / blockchain chain).History knows many examples when the governments of different countries, guided by the interests of their citizens, inadvertently led to the decline of advanced civil initiatives. This time is a period of complex formation of crypto-economics and state relations, which is still in the making.
The project that we present to your attention has no borders between countries and peoples. And we, a group of enthusiasts, would very much like to cooperate with large government organizations. But, to our deep regret, the states currently at the stage of formation of their cryptocurrency policies make mistakes that negatively affect the crypto community.
The market of cryptocurrency assets, which has a ten-year history of development, is very sensitive to various statements by officials. However, unqualified criticism cannot withstand the global trend. And no one can stop the future.
With all the desire, time does not stand still, technologies themselves continue to evolve, new technologies, new projects, new views that can be upgraded in the distant future, as well as processes of government and regulation themselves, to introduce innovative elements into them. We do not expect the distant future, and many tools are available now. And we have something to offer you.
This is especially relevant against the backdrop of the upcoming global financial crisis, with the inevitable decline in trust in state financial institutions; cryptocurrency have high chances of becoming more popular in the absence of other technological alternatives.
As we noted earlier, there is a lack of awareness among people about Blockchain technology and cryptocurrencies. These technologies are extremely undervalued, since there is much more benefit in them than one can imagine.
In the cryptocurrency assets industry itself, there are fraudsters at this time who are trying to steal or fraudulently get your money.
At the same time, there are many honest crypto projects that can not be realized due to stereotypes of perception of them as fraudulent. Objectively, they could be judged by their work and projects that have been successfully implemented. In principle, it is necessary to be cautious in terms of investing in any projects, even if they are guaranteed by reputable people or companies. No reputable person or company can match the level of guarantee and security of your assets, as in the Bitcoin blockchain.In any case, the decision to invest is yours, not imposed by restrictions, and the responsibility lies with you.
According to Road Map, we intend to fulfill all the terms of the agreement with our participants.
We do not promise you a high yield of our tokens, we put all our experience into the overall welfare of the project and each user. There will be no delisting on the service until the community votes for the opposite.
Our risk is collective. We urge you to make an adequate and balanced choice, instead of imposing any other opinion on you. We are not supporters of aggressive marketing.
There are many cryptocurrency assets and it’s difficult for a regular user to store and exchange them, as well as use them in everyday life.

3 Disadvantages:

These are problems that affect users and cryptocurrency in general.

4 Solution

The PORTBITX project guarantees compliance with all of its obligations and user rights.
We integrate community communications into our PORTBITX service.
Users are offered the following functions:

5 Competitors

Direct market competitors are all decentralized and centralized services related to the purchase or sale of cryptoactive assets, as well as services that provide storage services on a cold or hot crypto wallet.
More than 16 thousand services and more than 2 thousand types of cryptocurrency assets.
We have the opportunity to offer our clients a reliable and open service for the storage and exchange of cryptocurrency assets.
The main competitors are such large cryptocurrency exchanges like Binance, Bitfinix, Bitrix, etc. These multibillion-dollar projects that can affect the entire market and regulate pricing also have millions of crypto communities.
This position is deserved by their work. There are, of course, disadvantages associated with the opacity of their activities, unlike us, but in general they play an important role in the cryptoindustry. Their trading volumes are impressive and inspiring, their mistakes lead to sharp price fluctuations in the crypto market.
There are still crypto exchange. In comparison with the leaders, they are significantly inferior in the volume and number of users. These exchanges include the bulk of all crypto exchanges on the market.
There are also exchange services on the market that allow you to exchange fiat money for cryptocurrency assets. Most often the commission is quite expensive. For example, they can range from 1% to 20%. Such a high commission can be explained by the fact that the locations where buyers and sellers are located have government restrictions or are prohibited.
In addition to all of the above, there are closed groups in social networks or instant messengers. There, people discuss and agree on the price and method of payment. Commissions are often not high from 0% to 5%, but one should not hope that such operations can be safe, since personal meetings are always accompanied by a risk to life or health.
Exchange transactions in the onion network may have no guarantees at all that the transaction will be successful. In deep web, everything works on credibility / reputation, and the higher the seller’s rating, the higher the likelihood of a successful outcome of the transaction. In the same place, you can sell tagged or stolen cryptocurrency assets. For this, there are special mixing sites to hide the criminal trail. These types of exchange operations are the most unreliable.
For this reason, one of the safest types of exchange operations is large centralized cryptocurrency exchanges. Such centralized services, sometimes using their position, impose their own rules, which leads to a loss of users’ material values.
PORTBITX is designed to empower cryptographic protection for maximum convenience and simplicity, as well as to protect the funds and personal data of users.
PORTBITX connects all cryptocurrency assets into one transport hub and creates highly efficient curvilinear isolation of the currency to make cryptocurrency as safe and close to people as possible.

6 Segment

A registered user of the PORTBITX portal can be any person supporting the general idea of ​​a free society. Our users are anonymous and financially independent, with the right to vote and the right to receive common incomes obtained by the operation of the portal and the activity of the crypto community PORTBITX.
For whom we create a service:
It can be ordinary housewives, entrepreneurs, unemployed, self-employed, freelancers, people who invest in the future, wealthy investors, etc.
One of the advantages of the service is anonymity, which gives anyone the right to save and earn around the world online, without fear that tomorrow they will be forced to pay some strange fees or licenses.
Service users are interested in the distribution and real use of cryptocurrency.
Self-regulating community PORTBITX, respecting the rights of all project participants.
Service users are:
For trust in the trade service there will be a seller rating for all types of goods and services presented. There will be a book of reviews about each seller, where each buyer has the right to leave a review about the product or service. This scheme is actively used in Darknet. The basic principle: the more positive reviews, the more trust. Each seller values ​​his authority and thus provides the best possible product or service. The expression “customer is always right,” works because no one wants to lose their customers.Currently, according to blockchain.com, there are used 34 million people who hold their funds in Bitcoin. The remaining number of users is difficult to calculate, but according to our modest calculations, there are at least 2 times more other users in any other currency.
This suggests that there is still a great demand on the market for services of safe storage and exchange of cryptocurrency assets.

7 Bounty

Bounty is a reward of users for PR-activity: subscriptions on forums, maintenance of topics in local language versions, translation of documents into a local language, publications in social networks, blogs and so on.
The terms of the bounty are published in the user profile of the section Terms and conditions of the bounty campaign.
To participate in the bounty campaign, bounty hunter, you need to register on the site PORTBITX.
You agree to the terms and conditions of the Bounty campaign if you register and do Bounty Hunt.
Tasks and their description are listed in the special section “Bounty Hunt”.
Each task is individual and has its own characteristics, so bounty hunters are invited to carefully study the conditions of each task.
Rewards are described in each task separately. The results of remuneration depend on the correct execution of the task.The remuneration is charged to the user’s personal account in the personal account.
There is also a payment history for completed tasks.
After the last fundraising stage, all information will be deleted in favor of the anonymity of users. We will also delete information about site visits and personal information that was required to specify to receive a reward. In the case of a request by third parties for data, we did not have information that could harm bounty hunters.
The bounty budget is 14,325,893 PORTBITX.
The distribution of tokens in stages is as follows:
Stage 1 – 6,325,000 PORTBITX;
Stage 2 – 4 000 000 PORTBITX;
Stage 3 – 4 000 893 PORTBITX.
Distribution of PORTBITX tokens:
If the ICO is not successful, the invested funds will be returned to investors, and the reward for bounty hunters will be canceled.
For this reason, we regulate and monitor the social activity of the bounty hunters so that the conduct of all ICO stages is successful.
For bounty campaigns, an application to the technical department is provided in order to correct them immediately in case of errors, as well as to assist the bounty hunters in carrying out their tasks.
We are building a healthy community, so we ask that the personal opinion and evaluation of the project PORTBITX of each participant be objective and adequate.
Each participant in the campaign bounty is our representative, and for us it is important to have a clear understanding of the face of responsibility and benefit that the community carries out.

8 Market

On the market there are many companies involved in the exchange and storage of cryptocurrency assets.
The number of such services is more than 16,000 and this is not the limit, but it is precisely in the face of fierce competition that truly unique and competitive projects are born.
This market situation motivates us to create a truly useful and necessary service in order to make the range of our service available to a wide range of people.
Recently, according to Google Trends, interest in cryptocurrency has fallen significantly. Now interest has rolled back to the area of ​​2016-17.
Cryptocurrency industry continues to function and develop. Now on the blockchain, you can create your own e-government, your own elections and currency, everything is limited only by the imagination of all industry participants.
The ecosystem is actively developing for the use of cryptocurrency in trading operations. Governments and regulators in different countries are seeking greater transparency in the cryptocurrency industry.
Some, such as the Japanese government, license and regulate crypto exchange and services. In Japan, cryptocurrency has long been accepted as a means of payment in many outlets. In states with despotic regimes and an unstable economy, one of the few tools for the preservation and enhancement of assets is Bitcoin, for this reason in these countries the rate can differ greatly from the average market rate.
The financial crisis and the instability of markets around the world continues to cause fear among people. In some countries want to ban circulation of dollars. Gold cannot be bought in the usual way and owners may experience some difficulties in working with it. Gold has long ceased to be a means of payment.
The priority for us is the safe storage of cryptocurrency assets, maximum user convenience and integration, the popularization of the cryptoindustry in everyday life.
In order for cryptocurrency assets to be used and an integral part of human activity, we want to form a stable market. At the moment, the capitalization of the entire market for a number of years fluctuates in the range of $ 100– $ 300 billion. The range of exchange operations ranges from $ 13-16 billion per day. The number of cryptocurrency assets represented on the markets is more than 2000 types.
The dominance of the main cryptocurrency Bitcoin is in the range of 49-52% of the entire market.
The tendency to reduce the main quotes scares potential investors, but this is not a reason for surrendering positions to a multi-million dollar audience of crypto enthusiasts. The reason why people continue to create new projects and new systems for exchange and transactional systems is the benefits they bring to humanity. In the market, as well as around the world, there are many unscrupulous developers who need to fight.
We are engaged in creating and securing the credibility of the cryptoindustry so that the user can choose a reliable service or network, and not imposed by anyone. This is one of the fundamental aspects of a free community. The right of choice for the user, “the client is always right” is an integral part of the philosophy of the PORTBITX project. By the level of their responsibility, transparency, advanced thought, innovation, in the future, the work of PORTBITX will judge all cryptomir. The better we, PORTBITX work for the good of society, the more trust we have and the more users use the PORTBITX service.
PORTBITX is part of a new culture, part of an ecosystem where the core value is reputation based on trust. This is a project where reputation is more important than money, and utility and service to people is more important than ostentatious hospitality and external gloss, and the safety of the assets of our project participants is more important than our profit indicators.
Capitalization is growing steadily from year to year.
At the beginning of 2017, the capacity of the crypto market was around $ 19 billion. Now capitalization has grown to $ 200 billion. The growth is colossal, but the market is still young and there will be many more challenges on the way to which all market participants will have to respond. And our participants will be the most prepared.
The number of new blockchains and new projects is growing, and the number of participants in the crypto market is also growing. As a result, the attitude of people to the cryptoindustry is changing for the better, just like the cryptoindustry itself.
In 2017, the known cryptocurrency assets were less than 800 species, but now their number has grown. Now on the market represented more than 2,000 species.
Not all assets are honest, there are those whose purpose is to obtain short-term profits, which badly affects the reputation and trust in the cryptoindustry. But, if we recall the story of the beginning of our amazing world, then the price for one Bitcoin was $ 0.00000003. Since then, the situation in the cryptoindustry has changed dramatically.In the future, the cryptoindustry market is waiting for great popularity and that is why reliable and honest services for the storage and exchange of cryptocurrency assets like our project will be needed.
Sharp volatility is such because the market is relatively young and has not reached even a tenth of its potential and capitalization. Therefore, the time in which we live is just a starting point. The world has already passed the Rubicon and there is a long and interesting road ahead.
The potential market we can serve in the future is more than one billion users. Now this market is slightly less than 50 million users.
Experts expect that in the future cryptocurrencies will replace the official fiat money.

9 Product

PORTBITX is a digital portal for storing, exchanging and trading cryptocurrency assets, as well as a platform for selling goods and services for cryptocurrency.
The service is managed by the community by voting. Voting topics are offered through a special application in the voting section.
Service has three main areas.
Secure storage of cryptocurrency.
Secure storage of over 1500 different cryptoactive assets. Safety is ensured by safe cold the repository.
The service itself is not directly connected to the repository to prevent the penetration of potentially dangerous programs. The security of user data in the service itself is protected by a local block chain. The entire database and operations are recorded on the principle of a distributed registry. Hacking one server should do this with hundreds of others located in different places. Mining in this block chain is not performed because all the costs of maintaining such security are borne by the service itself.
The PORTBITX development team is fully responsible for the security of cryptocurrency assets and for the operation of the service. One of the most vulnerable links in the safety chain is the human factor (concerns not only users, but also developers). For this reason, it is necessary to double-check scenarios, conduct stress testing and carefully select personnel.
Exchange
This is a portal for exchanging all available cryptocurrency assets for any other. The number of assets available on the portal will be recorded in the blockchain for a reliable display of the volume, the number of wallets, users and information on all the operations performed since the launch of the main network will also be indicated in the blockchain.
Any cryptocurrency asset can be exchanged for any other if it is in demand. The market decides for itself how and in what to trade. All exchange orders will be visible in online charts. Potentially, we will add more than 2,500,000 pairs to the portal, but not immediately, but in parts and as each cryptocurrency asset is checked. Also the choice for coins or tokens will always be behind the PORTBITX community. After each vote, all results will be published in the section “Voting” and on the official website of the service.
The portal has a convenient interface and an open registry, i.e. users will be able to monitor and control the network with developers. Also, with certain voting results, there may be additions to the network.In the future, we want to release the service in free navigation and stop controlling the network. If we succeed, we will open source code and create jobs for miners.
Marketplace
Marketplace is valid for the sale of services and products for cryptocurrency. High-quality and convenient service. All transactions on the Marketplace are recorded in the main register of the local blockchain. A wide range of products available advertising products and services, two types of payment (with a guarantee and with a reputation) to choose from.
The following portal functionality:
Voting / referendum
An important component of the PORTBITX portal is voting / referendum.
A variety of topics and surveys can be submitted to a vote, directly related to the PORTBITX community and the portal itself. For example, changes in tariff rates, adding new tokens, adding new services and additions to the service.
The right to vote is the right to decide the fate of the community, the right to find the best solution to the problems, the right to be free, honest and fair.
One voice is 5000 PORTBITX. (this limit can be lowered if the community decides on a general vote).
Since tokens can be sold on third-party services, they cannot automatically take part in voting. Also, all available tokens on the portal should be frozen for a period of voting that lasts no more than 24 hours, starting at 00:00 Central European Time.
Tokens are frozen through the user’s personal account in the voting section.Persons who do not have enough tokens for voting, but having the right to profit PORTBITX have the opportunity to see the voting results, as well as to make their proposals for the next vote.
Persons who do not have enough tokens for the right to vote and the right to profit will have the opportunity to group together for collective voting.
Results and coverage of all voting results will be immediately published after the end on the portal’s main page.
A vote is considered legitimate if a quorum gains 65% of the total number of votes. The decision on the outcome of the vote can be made if the number of those who agreed to 100% of those who participated in the vote is 60%. Voting can be repeated if uncrowded by a majority. In this case, the proposal will be revised. The deadline for a deferred vote may pass unplanned within two weeks after the end of the first vote. If, in the second ballot, the majority of votes will also not reach the bulk of 60%, then this issue will be postponed or canceled and will not be considered within the next 6 months.
The right to vote is not just an opportunity to influence the portal, it is the will of the community that developers must obey.
The right to profit
The right to profit is obtained by freezing tokens through the user’s personal account for a period of at least one month. The number of tokens needed to make a profit of at least 1000 PORTBITX.
The calculation of the distribution of profits are as follows.
All profits from all services provided by the service for a certain period of time in the tokens in which the activity was performed are distributed in relation to all community members who have frozen the tokens directly on the service portal. The profit is distributed in the same currencies in which it was received on the service.
In the event that the frozen asset of the PORTBITX tokens is defrosted ahead of time, then the profit it receives during this period will be distributed among the other participants whose tokens remain frozen.
Participation in the project is proved by deed and rewarded, in all fairness.
All profits, namely the estimated profits of users during and at the end of the period can be tracked and seen in the registry on the main page accessible to all interested parties.
PORTBITX developers do not hide revenues and honestly share them with the community.
Each user has the opportunity to check the registry and find their own account.Maximum openness and transparency is the key to trust and success of the service.

10 Road Map

11 Economy and Demand

All information on the movement of funds and their spending will be published on the official website of the company in a special reporting form.
All actions performed by PORTBITX will be covered in the news section of the company’s website.The voting results and the timing of their holding, as well as the topics discussed for voting will be in the user’s personal account in the “voting” section.To date, only about 80 million people have a cryptocurrency, store it or use it in payments.
Now there’s practically no way to find a person who hasn’t heard about bitcoin or blockchain at least once. The cause of mistrust is people who undermine the true face and good intentions of the founding pioneers of the cryptoindustry.
The market is too small and hypervolatil, but this trend will continue only for some time, until the total market capitalization reaches 1 trillion. USD This milestone will further open the way to even more people who want to be part of the crypto world. A larger number of participants will make this market more stable and less prone to hypervolatility.Unfortunately, there are many scammers and individuals who undermine the basis of the industry, and its usefulness. Therefore, the PORTBITX development team creates a service safe for the safety of users’ funds.
According to statistics provided by Blockchain.com from March 2018 to February 2019, the number of new users who registered new cryptocurrency wallets increased from 23 million to 33 million. Based on the data obtained, it can be concluded that there is a need for reliable storage of their cryptocurrency assets.
The year 2019 is a preparatory platform for an even larger number of users, so we decided to create a portal for the ecosystem of the cryptocurrency industry.

12 Project Team

One of the important factors in the decision making for an investor is the transparency and fame of the team that works on the project. An investor can check team members, evaluate and decide on investments. The knowledge and experience of the team is a kind of guarantee that the project will be implemented, but as is often the case in real life, this may be far from reality.
In the cryptoindustry, nothing can be 100% sure. Any ICO defaults to scam.
If you have doubts about our decency, we suggest investing a small amount.
By collecting the minimum amount, we will demonstrate in practice that we are credible, because our goal is to benefit the community.
Founders of PORTBITX
Co-founder and Technical Director Steve Man
Co-founder and CEO of CharleySJ
Director of Marketing and Public Relations MAD Phoenix
Director of Methodology and Legal Support at PenA

13 Investments

The minimum capitalization of the project at the first stage is 1,450 ETH.
The minimum total capitalization of the project will be 56,000 ETH.
The maximum capitalization of the project can reach more than 160,450 ETH.
Tokens will be issued in the amount of 143,258,928.57142.
Share will be up to 8 decimal places. ICO is calculated in three stages.
We create a product that meets modern requirements and market challenges. Additional issue is not provided. After the last stage of the ICO, all assets not sold will be destroyed.
We initially limit the emission of tokens in order to avoid a large amount of excess asset. Being part of the PORTBITX community means having the privilege of voting and profit of the service. And that means – to understand the idea and share the philosophy of the cryptoindustry and with full responsibility to approach the decisions that will affect the community.
The opportunity to receive a bonus will be among the participants of the Bounty campaign and among ICO investors, but by decision of the crypto community.
Return of investment will be carried out in several ways.
By obtaining distributed service profit
Due to the possibility of selling a token at the market price, which can be ten times higher than the initial cost.
The token will be based on the ERC20.
The predicted price of a token at the end of an ICO can be about $ 3.7.
The projected service revenue for the first year may be more than $ 500 million.
Pricing can be changed if there is an ETH price manipulation before release.
The news about the name and the release of tokens will be announced in the official news, so you should not give in to manipulation.

14 ICO Features

Jurisdiction: Blockchain
The number of tokens is 143 million.
On ICO 80.225 million
On a bounty campaign of 14.3 million
The developers and founders of 34.382 million, and the maintenance of the service 14.3 million.
Distribution will be carried out automatically.
The following fundraising is provided:
Stage 1 – 1,450 ETH
Stage 2 – 10,000 ETH
Stage 3 – 149,000 ETH
Pricing and limits
1st stage ICO
1 PBX = 0.002 ETH
1 ETH / 0.002 = 500 PBX
5 ETH / 0.0015 = 3 333.33333333 PBX
10 ETH / 0.001 = 10,000 PBX
Rules of the first stage:
The minimum amount to raise funds 1,450
Price is limited to pricing policy.
Bounty company 6 million
Refund in case of not reaching the minimum amount to raise funds
2nd stage ICO
1 PBX / 0.003 ETH
1 ETH / 0.003 = 333.33333333 PBX
5 ETH / 0.0025 = 2,000 PBX
10 ETH / 0.002 = 5,000 PBX
3rd stage ICO
1 PBX / 0.004 ETH
0.5 ETH / 0.004 = 125 PBX
1 ETH / 0.0035 = 285.71428571 PBX
5 ETH / 0.003 = 1 666.66666666 PBX
10 ETH / 0.0025 = 4,000 PBX

15 Legal aspects

Placement of the company – Blockchain. This is due to the fact that we approach the project with full responsibility and are aware of the consequences of our actions, as well as due to pressure from some states and their unfriendly policy to the cryptoindustry.
Also, the service will not be present fiatnye currency, as their existence is not combined with the philosophy of our company. We will temporarily not specify the location of the company, as well as disclose the names of developers for the safety of their rights to life, health and freedom.
Since we consider ourselves a free community, some data for the sake of security for the sake of this freedom will be hidden from outsiders.
We guarantee a refund in case of unsuccessful first stage at 100% minus the miners commission.
This is important because the tools incorporated in the first stage are necessary for creating the kernel and the subsequent imposition of software modules.
We considered options for direct investment in the project from private investors, but since these investors could influence our strategy and policies, and since they could take some of the functions from the community, we decided to invest in our project as a community by Ico.
The risk of investing in our project, of course, is great, but we want to build a really useful service for the industry as a whole and for each user of the service separately. Therefore, we enable the community to judge us by our work.
submitted by Portbitx to u/Portbitx [link] [comments]

Decred Journal — June 2018

Note: You can read this on GitHub, Medium or old Reddit to see the 207 links.

Development

The biggest announcement of the month was the new kind of decentralized exchange proposed by @jy-p of Company 0. The Community Discussions section considers the stakeholders' response.
dcrd: Peer management and connectivity improvements. Some work for improved sighash algo. A new optimization that gives 3-4x faster serving of headers, which is great for SPV. This was another step towards multipeer parallel downloads – check this issue for a clear overview of progress and planned work for next months (and some engineering delight). As usual, codebase cleanup, improvements to error handling, test infrastructure and test coverage.
Decrediton: work towards watching only wallets, lots of bugfixes and visual design improvements. Preliminary work to integrate SPV has begun.
Politeia is live on testnet! Useful links: announcement, introduction, command line voting example, example proposal with some votes, mini-guide how to compose a proposal.
Trezor: Decred appeared in the firmware update and on Trezor website, currently for testnet only. Next steps are mainnet support and integration in wallets. For the progress of Decrediton support you can track this meta issue.
dcrdata: Continued work on Insight API support, see this meta issue for progress overview. It is important for integrations due to its popularity. Ongoing work to add charts. A big database change to improve sorting on the Address page was merged and bumped version to 3.0. Work to visualize agenda voting continues.
Ticket splitting: 11-way ticket split from last month has voted (transaction).
Ethereum support in atomicswap is progressing and welcomes more eyeballs.
decred.org: revamped Press page with dozens of added articles, and a shiny new Roadmap page.
decredinfo.com: a new Decred dashboard by lte13. Reddit announcement here.
Dev activity stats for June: 245 active PRs, 184 master commits, 25,973 added and 13,575 deleted lines spread across 8 repositories. Contributions came from 2 to 10 developers per repository. (chart)

Network

Hashrate: growth continues, the month started at 15 and ended at 44 PH/s with some wild 30% swings on the way. The peak was 53.9 PH/s.
F2Pool was the leader varying between 36% and 59% hashrate, followed by coinmine.pl holding between 18% and 29%. In response to concerns about its hashrate share, F2Pool made a statement that they will consider measures like rising the fees to prevent growing to 51%.
Staking: 30-day average ticket price is 94.7 DCR (+3.4). The price was steadily rising from 90.7 to 95.8 peaking at 98.1. Locked DCR grew from 3.68 to 3.81 million DCR, the highest value was 3.83 million corresponding to 47.87% of supply (+0.7% from previous peak).
Nodes: there are 240 public listening and 115 normal nodes per dcred.eu. Version distribution: 57% on v1.2.0 (+12%), 25% on v1.1.2 (-13%), 14% on v1.1.0 (-1%). Note: the reported count of non-listening nodes has dropped significantly due to data reset at decred.eu. It will take some time before the crawler collects more data. On top of that, there is no way to exactly count non-listening nodes. To illustrate, an alternative data source, charts.dcr.farm showed 690 reachable nodes on Jul 1.
Extraordinary event: 247361 and 247362 were two nearly full blocks. Normally blocks are 10-20 KiB, but these blocks were 374 KiB (max is 384 KiB).

ASICs

Update from Obelisk: shipping is expected in first half of July and there is non-zero chance to meet hashrate target.
Another Chinese ASIC spotted on the web: Flying Fish D18 with 340 GH/s at 180 W costing 2,200 CNY (~340 USD). (asicok.comtranslated, also on asicminervalue)
dcrASIC team posted a farewell letter. Despite having an awesome 16 nm chip design, they decided to stop the project citing the saturated mining ecosystem and low profitability for their potential customers.

Integrations

bepool.org is a new mining pool spotted on dcred.eu.
Exchange integrations:
Two OTC trading desks are now shown on decred.org exchanges page.
BitPro payment gateway added Decred and posted on Reddit. Notably, it is fully functional without javascript or cookies and does not ask for name or email, among other features.
Guarda Wallet integrated Decred. Currently only in their web wallet, but more may come in future. Notable feature is "DCR purchase with a bank card". See more details in their post or ask their representative on Reddit. Important: do your best to understand the security model before using any wallet software.

Adoption

Merchants:
BlueYard Capital announced investment in Decred and the intent to be long term supporters and to actively participate in the network's governance. In an overview post they stressed core values of the project:
There are a few other remarkable characteristics that are a testament to the DNA of the team behind Decred: there was no sale of DCR to investors, no venture funding, and no payment to exchanges to be listed – underscoring that the Decred team and contributors are all about doing the right thing for long term (as manifested in their constitution for the project).
The most encouraging thing we can see is both the quality and quantity of high calibre developers flocking to the project, in addition to a vibrant community attaching their identity to the project.
The company will be hosting an event in Berlin, see Events below.
Arbitrade is now mining Decred.

Events

Attended:
Upcoming:

Media

stakey.club: a new website by @mm:
Hey guys! I'd like to share with you my latest adventure: Stakey Club, hosted at stakey.club, is a website dedicated to Decred. I posted a few articles in Brazilian Portuguese and in English. I also translated to Portuguese some posts from the Decred Blog. I hope you like it! (slack)
@morphymore translated Placeholder's Decred Investment Thesis and Richard Red's write-up on Politeia to Chinese, while @DZ translated Decred Roadmap 2018 to Italian and Russian, and A New Kind of DEX to Italian and Russian.
Second iteration of Chinese ratings released. Compared to the first issue, Decred dropped from 26 to 29 while Bitcoin fell from 13 to 17. We (the authors) restrain ourselves commenting on this one.
Videos:
Audio:
Featured articles:
Articles:

Community Discussions

Community stats: Twitter followers 40,209 (+1,091), Reddit subscribers 8,410 (+243), Slack users 5,830 (+172), GitHub 392 stars and 918 forks of dcrd repository.
An update on our communication systems:
Jake Yocom-Piatt did an AMA on CryptoTechnology, a forum for serious crypto tech discussion. Some topics covered were Decred attack cost and resistance, voting policies, smart contracts, SPV security, DAO and DPoS.
A new kind of DEX was the subject of an extensive discussion in #general, #random, #trading channels as well as Reddit. New channel #thedex was created and attracted more than 100 people.
A frequent and fair question is how the DEX would benefit Decred. @lukebp has put it well:
Projects like these help Decred attract talent. Typically, the people that are the best at what they do aren’t driven solely by money. They want to work on interesting projects that they believe in with other talented individuals. Launching a DEX that has no trading fees, no requirement to buy a 3rd party token (including Decred), and that cuts out all middlemen is a clear demonstration of the ethos that Decred was founded on. It helps us get our name out there and attract the type of people that believe in the same mission that we do. (slack)
Another concern that it will slow down other projects was addressed by @davecgh:
The intent is for an external team to take up the mantle and build it, so it won't have any bearing on the current c0 roadmap. The important thing to keep in mind is that the goal of Decred is to have a bunch of independent teams on working on different things. (slack)
A chat about Decred fork resistance started on Twitter and continued in #trading. Community members continue to discuss the finer points of Decred's hybrid system, bringing new users up to speed and answering their questions. The key takeaway from this chat is that the Decred chain is impossible to advance without votes, and to get around that the forker needs to change the protocol in a way that would make it clearly not Decred.
"Against community governance" article was discussed on Reddit and #governance.
"The Downside of Democracy (and What it Means for Blockchain Governance)" was another article arguing against on-chain governance, discussed here.
Reddit recap: mining rig shops discussion; how centralized is Politeia; controversial debate on photos of models that yielded useful discussion on our marketing approach; analysis of a drop in number of transactions; concerns regarding project bus factor, removing central authorities, advertising and full node count – received detailed responses; an argument by insette for maximizing aggregate tx fees; coordinating network upgrades; a new "Why Decred?" thread; a question about quantum resistance with a detailed answer and a recap of current status of quantum resistant algorithms.
Chats recap: Programmatic Proof-of-Work (ProgPoW) discussion; possible hashrate of Blake-256 miners is at least ~30% higher than SHA-256d; how Decred is not vulnerable to SPV leaf/node attack.

Markets

DCR opened the month at ~$93, reached monthly high of $110, gradually dropped to the low of $58 and closed at $67. In BTC terms it was 0.0125 -> 0.0150 -> 0.0098 -> 0.0105. The downturn coincided with a global decline across the whole crypto market.
In the middle of the month Decred was noticed to be #1 in onchainfx "% down from ATH" chart and on this chart by @CoinzTrader. Towards the end of the month it dropped to #3.

Relevant External

Obelisk announced Launchpad service. The idea is to work with coin developers to design a custom, ASIC-friendly PoW algorithm together with a first batch of ASICs and distribute them among the community.
Equihash-based ZenCash was hit by a double spend attack that led to a loss of $450,000 by the exchange which was targeted.
Almost one year after collecting funds, Tezos announced a surprise identification procedure to claim tokens (non-javascript version).
A hacker broke into Syscoin's GitHub account and implanted malware stealing passwords and private keys into Windows binaries. This is a painful reminder for everybody to verify binaries after download.
Circle announced new asset listing framework for Poloniex. Relevant to recent discussions of exchange listing bribery:
Please note: we will not accept any kind of payment to list an asset.
Bithumb got hacked with a $30 m loss.
Zcash organized Zcon0, an event in Canada that focused on privacy tech and governance. An interesting insight from Keynote Panel on governance: "There is no such thing as on-chain governance".
Microsoft acquired GitHub. There was some debate about whether it is a reason to look into alternative solutions like GitLab right now. It is always a good idea to have a local copy of Decred source code, just in case.
Status update from @sumiflow on correcting DCR supply on various sites:
To begin with, none of the below sites were showing the correct supply or market cap for Decred but we've made some progress. coingecko.com, coinlib.io, cryptocompare.com, livecoinwatch.com, worldcoinindex.com - corrected! cryptoindex.co, onchainfx.com - awaiting fix coinmarketcap.com - refused to fix because devs have coins too? (slack)

About This Issue

This is the third issue of Decred Journal after April and May.
Most information from third parties is relayed directly from source after a minimal sanity check. The authors of Decred Journal have no ability to verify all claims. Please beware of scams and do your own research.
The new public Matrix logs look promising and we hope to transition from Slack links to Matrix links. In the meantime, the way to read Slack links is explained in the previous issue.
As usual, any feedback is appreciated: please comment on Reddit, GitHub or #writers_room. Contributions are welcome too, anything from initial collection to final review to translations.
Credits (Slack names, alphabetical order): bee and Richard-Red. Special thanks to @Haon for bringing May 2018 issue to medium.
submitted by jet_user to decred [link] [comments]

How To Use The Blockchain To Protect The Trillion-Dollar Intelligent Import And Export Logistics Business

How To Use The Blockchain To Protect The Trillion-Dollar Intelligent Import And Export Logistics Business
Original Korean article https://www.jinse.com/bitcoin/284405.html published 4th December 2018. The article has been translated via Google translate. Prof. Songjie's credentials are listed at the bottom of this post.

How To Use The Blockchain To Protect The Trillion-Dollar Intelligent Import And Export Logistics Business

On November 22nd, the 2018 Global Smart Container Industry Alliance Annual Meeting and Smart Container Standards Publicity Training Conference was held in Shenzhen. Waltonchain CTO Wei Songjie delivered a speech at the scene. Professor Wei expounded the origin and development of blockchain and proposed the solution of blockchain technology applied in intelligent import and export logistics for the first time. He said that compared with the traditional way of shipping, the application blockchain can improve the time efficiency of more than 50% in the intelligent logistics industry and reduce the management cost by more than 30%.

https://preview.redd.it/fftck08ux0421.jpg?width=600&format=pjpg&auto=webp&s=827c930fc221610a98127588e3fa81d36aa3b72b
The following is the full text of the speech:
Good afternoon everyone, I am Wei Songjie. Today, the theme I gave to everyone is "blockchain: data container, pass-through transport line, trust notary". Because today's conference theme is a smart container, I also borrowed a topic called a "data container." In fact, in our information security industry, we call this a data package or a package called data. They are actually quite similar in nature, and data is also goods. For us, data is something of value.
In today's speech, I mainly talk about three parts: blockchain + digital certificate capability, blockchain + port cargo application scenarios, blockchain + intelligent import and export logistics solutions. Some of these contents are exchanged with some experts in the logistics industry. Some of the things may not be too mature and accurate. I am as a layman in this swearing, and I would like to ask you.
The blockchain has been a hot word in recent years. In my opinion, the biggest use of the blockchain is not "speculation", "sell one", "sip", these are their superficial articles. The biggest feature of this technology is its digital passability.
Dr. Zhou’s speech just said that what is the core in the container-based goods circulation industry? He said that documents are the core. For the circulation of goods, we need a list to prove. In the field of our blockchain, we call this core a pass.
Let me talk to you quickly, what is the blockchain?
In fact, this year happens to be the tenth anniversary of the blockchain. As for its origin, at the earliest, it came out as the underlying technology of Bitcoin, and its data structure is a chain structure. So what is it used for? It is used to book bitcoin. For example, who transferred to whom, how to turn, and so on. It is a distributed ledger, a public ledger, distributed meaning that there is no central bank, not a single individual has the final say. It has a wide range of applications, but most of the current applications still revolve around its financial transaction attributes.
In our field of computer science, we have used the term blockchain for less than a decade, but we have used this technology for decades. What do we use it for? In fact, we used to call it a distributed database a long time ago. That is to say, the database that everyone uses now has (several) servers. That distributed data means that instead of having a centralized server to store data, it means that the data is distributed in many different places, so we call it a distributed database.
Of course you have a database, you always have software, but also have a system. So in fact we have studied more accurate nouns. For example, let me study the distributed system for more than ten years. At the same time, we also use the blockchain-related things to achieve the measurement and circulation of this value. This has actually been used since, for example, QQ has Q coins, many games have points or coins, so this is not new. Of course, we study from the perspective of how the entire process, including the value of commodity services, is measured and quantified.
In the end, what is the main feature of the blockchain and what is it used for? Be an endorsement of trust. Therefore, we often hear people say that I can't change the data on the blockchain. You can't lie to me. It can't be fake forged, can't be lost, and so on. In fact, its core is, if you believe it or not, you believe it, if you don’t believe it.
In fact, long ago we were able to do trust-based or data-based trust and verification. But what did we call it at that time? We call cryptography. So I often talk to my students during the exchange, the blockchain thing, now it can not be said to be a gimmick. Again, we rely on it to do research, write papers, and then do projects. In fact, it is more like an application innovation—that is, combining existing technologies in a new way and using them in newer ways. Broad application scenarios.
Which combination of technologies? The core of distributed systems, peer-to-peer networks, and cryptography is these. Therefore, those people say that the blockchain is very important, or very useful, and its elements are summed up in fact. Then what effect does it use to achieve these effects? I think it is the effect of interconnection, interoperability, mutual trust, mutual benefit and mutual integration.

https://preview.redd.it/q56zn8kvy0421.jpg?width=600&format=pjpg&auto=webp&s=f00723c563bea43e476ad252e090a447d6f825c6
The Internet is easy to understand. In fact, our current information systems, including our devices, are rarely fragmented or run independently. Most of them are networked, including your mobile phone and computer. If you can't access the Internet, the mobile phone is not yet available. It’s a brick, right. No use. Now everyone can't do without the network. In fact, the blockchain is the same. Its underlying core is that it can be networked and does not depend on a specific or specific network. It does not depend on a specific server and does not depend on a specific SP (network service provider). I was able to connect to the Internet. This time we called P2P (peer-to-peer network), this is no stranger. Because a long time ago, I remember that I went to the movies and songs. The eDonkey used in that year was P2P. What it wants to achieve is interconnection, which means that you are not an individual, you are not separated, P2P technology is how to connect with others.
The second is interoperability. The reason for interoperability is because everyone wants to communicate. For example, everyone here is Chinese. If I speak a foreign language here, everyone knows English, and Japanese may understand it. But for example, Burmese and Vietnamese, you may not understand. At this time, what I said is still human, you are all human, but everyone does not understand, why is this? Because it does not have a valid specification. There is no rule that this field can only speak Chinese, or that this field can only say what you and I can understand, and this is the reason for interoperability. The blockchain, which defines a set of interworking rules or norms. Just like the (national container) standard we set here today, why should this standard be? Because if the standards are different, for example, the container you are ten meters high, my two or three meters high, then you said how to pull this truck? How can I store this warehouse? How do I load the goods? Right. This is the standard use.
The third is mutual trust. I just said, what is data? What is useful is the data. What kind of data is useful? Real is useful. Then how is it true? You have to be able to verify, or you have to be able to prove it. Therefore, the blockchain uses cryptography to achieve mutual trust. Think about it, the information system we use now, or the computer and related equipment, what is the most valuable, that is, data. In fact, if I lose a mobile phone now, I don't feel bad at all. Thousands of dollars can buy one back. But what is the pain? It's the address book, chat history, and photos inside, maybe there are sensitive photos. This kind of data is the most valuable.
The fourth is reciprocity. Blockchain It is the circulation or value sharing that can achieve this value. Of course, there is a lot of value in this system. In fact, it is a number. Just like we have mobile payments now, we rarely use money. Credit cards are not very useful, so money is a symbol for us, and the symbol is a number. It's the same, but this number is valuable, or the back of the number is money, and the blockchain can achieve this effect. Of course, if there are benefits, some people will suffer and some will take advantage of it. This is reciprocity. Our best effect is to achieve the Pareto improvement in economics. If I take advantage of it, you will not suffer. This is a win-win situation or a win-win situation. The blockchain can do this.
The fifth is called mutual integration. In other words, since everyone is living together in an ecological environment to live together, coexist, agree, and work together, then everyone must have a way to achieve consensus. For example, today, who should we listen to? Of course, we should listen to the organizer and listen to the host, because I recognize you as the host, right. But if there is a spoiler, he will not recognize it. He has not reached this consensus, and this matter is troublesome. So, inside the blockchain it has a series of algorithms and methods to achieve consensus. For us, the simplest consensus or the easiest to understand is that everyone votes. Who do you think is the moderator, who has the most votes, and who is the moderator, but the simplest (fairness) is often the hardest to achieve. But in fact, these (consensus) are the core elements of the blockchain, and what effect can be achieved with these elements, and what is the use of these effects, this is its definition. Now our country is working on the relevant standards for the blockchain, but before this appearance, whether it is the corporate or academic world, or our Internet enthusiasts or blockchain enthusiasts, they do not have a standard definition. Some people call it a distributed system, someone calls it a chain, and someone calls it a mesh structure. I have a little bit inserted here, although it is called a blockchain, but in fact, in terms of chain structure, the chain is one-dimensional, but it is a form, and the chain really has two-dimensional or even multi-dimensional structure, two Dimension is a mesh structure, multidimensional. We call it a complex mesh system. So the definition of it is really just a statement or two words.
Since I am not coming to invest, this is not a preaching. You can't just say its benefits, let's be honest, let's talk about some interesting things in this technology.
The first one is that many people say that the blockchain is very good and decentralized, but is it decentralized? This is really debatable. Absolute centralization or absolute centralization is definitely not good. After all, I am not the "center", right. If anyone is the "center", who will definitely say it. Therefore, everyone must be hoping to be able to be equal, to be able to disperse, to be able to participate in and to make decisions without their own centralization. But the blockchain, it is not really decentralized, he is not without a center, he just turned a center into a lot.
Who has the final say? Everyone has the final say. How do you say it? A lot of ways. For example, the easiest way to vote, one person, one vote, is now very popular is the calculation power, who counts fast, who has the final say. There is another way, that is, whose shares are large. One person, one vote is the same situation for everyone's shares. Based on POS (consensus mechanism), it is actually to look at the rights and interests, to see who owns the shares, and the big one he said is more than me. In addition to this, there are many other ways. So we say that the blockchain is actually multi-centered, and there is a problem with true decentralization. For example, one problem we often face now is its efficiency problem. Well, take Bitcoin as an example. Everyone often says that I can get money by buying coins. But you have to know that you are actually launching a transaction on the Bitcoin network or system, or I will transfer you a sum of money, you have to wait a long time to receive it - this is not a few minutes, a few seconds, but maybe a few Ten minutes, a few hours, or even a few days. Therefore, decentralization will have efficiency problems.
Many of the so-called public chain or blockchain systems we have seen now have this efficiency problem. In other words, he may have a process, the algorithm is correct, the technical line is right, there will be too many people, especially in China, because the most important thing in China is the user, the most important thing is the user. Scale, efficiency will have problems. So our current research direction, including our application scenarios, is mostly multi-centered. Therefore, we call this multi-centered, not a center, that is not good, it is the original system, not the real center.
The second one is called the virtual and real of trust. In fact, the data is placed on the blockchain, can you really believe it? Put the blockchain, is it true? Of course it is not the case. I put a bunch of garbage into the safe, it is still rubbish, it is not worth it. Therefore, it depends on the entire ecology of the data or the entire life cycle, especially the stage of data perception or acquisition.
We now use the blockchain, including our company, some of our projects. In fact, we use a combination of software and hardware to solve how to ensure that the data you get is first-hand data, no noise, no errors, no interference. There is no such forgery, and then put it on the blockchain immediately, so that I can guarantee that the next life cycle of this data is real and verifiable. So this is why many people think blockchain data is true. However, if you put it true, it is true. If you are on vacation, it is fake. It guarantees that this data has not been altered and can be verified, but does not guarantee its original authenticity.
The third is the truth and falsehood of our consensus. The fact is that the consensus reached by the blockchain algorithm is the correct consensus? The correct consensus is that the American president is Trump. Is he really getting a 50% (vote) +1 vote? No, everyone knows that Hillary’s votes are higher and they get the same amount of votes. It was only because of the rules of their electoral college that Trump was elected. What does this show? Explain that our consensus mechanism can actually determine whether our final consensus is a general consensus, a relative consensus, or a professional consensus, and it depends on the scenario. So, you should first think about using the blockchain, and then design a consensus mechanism. After all, there is no universal technology that is universally applicable.
The last one is called the right and wrong of the data. What does it mean? Here is to say that the data is placed on the blockchain, we can say that it can not be tampered, can not be forged, can not be changed, it will not be lost, but can this really achieve this effect? In this (blockchain) industry, we often hear news that a word is called a fork. In fact, this is to say that the original chain grows in a single item, and it grows more and more in a while. When it grows long, it splits. Why is it forked? Because there is no consensus. Because some people think that it should grow like this, some people think that they should grow into that, and then there are people on both sides to support, so they fork. So this shows that the right and wrong of the data depends on who? Depending on the user, it depends on the consensus results of the user. So these are relative, in fact nothing is absolute. Including our cryptography, are you absolutely safe, definitely not. As long as I can live long enough, then I will try hard, and one day I will be able to try it out, right. The only absolute thing in us (information technology) is that it is the quantum code, which is absolutely safe. But this is a bit of a problem.
So now, in less than a decade, the blockchain has evolved in three different phases.
We have phases 1.0, 2.0, and 3.0, but it doesn't make sense to say that the specific technology is too boring. What we have to say is that 1.0 solves the problem that is too simple, that is, to record the account or to use it as a book; 2.0 can only fulfill the contract, can we say what we say, we write the program people like to write Some conditions are judged and looped. Actually, these conditions can be written in 2.0. What is the use of this condition? We will see it later. The direction that is currently developing is 3.0, 3.0 is to do things, that is to say, you This technology can not land, this is the third point. So, we are now between 2.0 and 3.0, almost the same period from 2.4 to 2.5.
Next, we make an analogy, an analogy between blockchain and data containers.
In fact, our blockchain really has blocks. Our data is really piece by piece. Each piece is called data encapsulation. This is a bit like we put a lot of goods in this container, and then lock the container, this is called a box of goods. For us, we are called a piece of data, and then we will lock this data. The lock on us is not an electronic lock. We call it a digital lock. In fact, it is a string of numbers used for verification to be used for signature. . This is one of our forms. This is not one-dimensional, but linear and two-dimensional. Containers, there are so many boxes, or so many pieces, they are also ordered, organized, we call Organize. Just like your box is to be numbered, then your box is to be neatly tidy, you can check it when you need it, and you can find it when you need it. So this is an analogy, for a bit more fun, a little fun.
The blockchain actually has many institutions now, and many countries are also used in the logistics industry, including import and export. For example, many countries in the United States, South Korea, and the Netherlands are doing it. Headed by IBM, they have a super-books alliance, and they also offer a range of solutions that can be used by everyone. Because their technology wants to be more versatile, there are actually a lot of data inconsistencies here.
So what does it do in the field of (container)? Or, what good is it? It has to solve the problem. One is inefficiency. Dr. Zhou also said that there are too many links, and then the people involved or the roles are too many and inefficient. The other is risky because this thing is not shipped. It is risky to pay, lose or lose money, pay taxes, and clear customs.
Then if we want to use it, for example, I want to use the blockchain to try it in this field, how can we try it? I think I can make three articles around my title, the first one is for data; the second is for value; the third is for trust.
In our blockchain, first, we can do the data bearer and ensure the integrity of the data. Second, we can quantify the data, especially the quantity and value of many such goods. Our measurability; the third is that we can trust, for example, authenticity, you remember so much, remember so many words, and then so many single-sub-services, using blockchain-related techniques to ensure that it can be accepted But it is really unrealistic because people will not accept it. In fact, Dr. Zhou said that the core of this industry, we are called documents. We can e-mail the documents. This technology is very ready-made, just saying how to use it. We are also doing application innovation, so we can use this framework of distributed architecture to achieve this electronic issuance of such notes or documents. But why is it not purely distributed or purely decentralized? Because of efficiency issues. Centralization efficiency is good, so he still has a data center placed there, and then the index of the data, the summary of the data, the keywords of the data, the hash of the data on the chain, so that people can be very fast, very Efficiently find the relevant data above, and then go to the original data center to get the original data.

https://preview.redd.it/zaoeu3fyy0421.jpg?width=600&format=pjpg&auto=webp&s=37e1886e14a730d6793bc8b4dfdb31d7a9e5c73b
At the same time, we can use the blockchain to implement this digitized sequence of processes. So you will look at the picture just now. The original picture has a lot of small arrows. It is actually talking about a sequence, just the picture. It's actually talking about the order, you can take the next step to do the next step, we call it timing. In fact, the blockchain can record and string these steps, and then tell you, now the entire business or the whole of our logistics is going to where it is, where is it stuck, and then how to go in the next step? Conditional judgment. How do the blockchain judge the conditions? Blockchain 2.0, support contract, right. So what is the contract? It is the program. I can write the program, what to do next, the blockchain can do this. In other words, in fact, many times we are concerned about timing, order. Where is the difference here? For example, this is what happened in a few months, and when the matter happened, this is absolute time. But many times, we are concerned about the relative time, who is who develops before and who is after whom, this logic or this real transaction makes sense. Just like you have to work first and then get paid, this is generally normal, but it is abnormal after working first. So this order is very important.
In addition, we can implement the submission and inspection of documents based on blockchain. Because you have data to always give people a home, you can find it when you need it, the blockchain can be done very quickly. In our words, the quick meaning is that its time is not exponential growth, not linear growth, we are talking about the size of the data (to grow). And when it comes to constant time, it means that no matter how much data you have, I can find the required data between the constants, and then check and verify that it is very efficient to submit and check the data. He has an ID and then has an electronic signature, and also checks the information. This blockchain is readily available.
The last one is that we can use the blockchain to implement this kind of supervision and management service for multiple roles, which means that you may be the owner. You may be a buyer, a seller, you may be a transit broker, you may be a carrier, you may be a customs officer, you may be in any role. So how can you have so many roles in the system? Because these roles are called users in our entire system, then the users actually have different ID addresses, ready-made. Just like the currency now, what is your wallet address? How do we ensure that different users have different permissions? We actually use certificates, we call Certificate, e-Cert. The more popular ones are passwords. Of course, now we often use multi-word authentication, which means that in addition to the password, you have to have a verification code or what character you have to identify, in fact, we use a certificate here. Certificates can be used to implement the setting and probability of this privilege for different roles.
Then all these things are put together, in fact we can transform the original process into a blockchain-based process. But this picture I just said, borrowed from a document. This may be just a general or a typical existing process, in fact, all of us or all of the roles can be in different blocks or different stages, with different blocks of blockchain. Is the data package to deal with, to achieve the whole process, to achieve the whole around the goods or around the entity, you are a box or a bag, we have to surround the virtual and electronic around the entity Data management and query verification This is a whole, we call it a typical system solution.
But this system is actually in use now, but it is not used for container management or for doing this import and export. What are we actually doing with this system? We are doing traceability of some of these items, such as typical clothing or food, where is it produced, and then through which links, then who is the wholesaler, who is the retailer, where is it, and then Have you ever retired or sold it to someone, and then did you go back to repair or have a return? In fact, our system is doing this. But this is no different because for us, these are all data. In fact, the data itself does not know what it means. The data itself is a character and a binary. So now we are running some of the green systems below, but it is a layman for this product.
So today, I am also grateful to all the invitations, and I will take the courage to take our set of things and put them in a new scene. This is called application innovation. The purpose of our 3.0 is to use it in more scenarios, and to use the effects, use the performance, and then use such an impressive, or acceptable, result.

https://preview.redd.it/5alntal0z0421.jpg?width=600&format=pjpg&auto=webp&s=58a685723da47dcb63019df15f987e086654d9a1
In the end, we return to our title, because my title says, the blockchain data container usually has a trusted notary, and each of these is actually meaningful. For example, the data container, which is actually implemented or for a specific scenario, such as the production and sales scene of the clothing we just mentioned, is actually the electronic standardization and intelligence of the data. This involves a lot of existing and popular technologies. For example, if there is more data, how do you analyze it? Here we will use data analysis, data mining and even data modeling methods. Data modeling that you may hear often is machine learning or deep learning, so this is part of intelligence. Standardization you are all experts. The pass-through transport line actually implements this automatic persistence and metering, but these three words have been discussed in general. Finally, trusting the notary, it realizes that around the authenticity, anti-counterfeiting and traceability of the data, it is not only reliable but also usable to build such a thing, not only usable, but also usable, not only usable, but also It is a system that is easy to use.
Finally, I am very grateful to everyone for spending more than 20 minutes. I am listening to my own industry or my own circle as a layman in this industry. I think we have to make the entire smart container to establish its industrial chain, ecological chain, value chain, etc. I think this is completely inseparable or impossible to leave information technology. Because a while ago our country strongly advocated that we call internet+, Internet+, in fact, it is now more accurate and accurate. It should be called information technology+. Otherwise, the internet+ you said may be artificial intelligence+, and then the future is Big data +, but they are all called information technology in our business, that is, Information Technology. Therefore, we are very eager to have the opportunity to use our knowledge in the field of information technology, and the meager ability to make a combination with everyone in the industry, including the specific and typical application scenarios, to truly realize our industry. A transformational upgrade of our industry. Then we realize the industrialization of our entire country called the industry 2.0 or the country we call the information age. Ok, thank you all.


Profile of Prof. Wei Songjie:
Doctor of Engineering (graduated from the University of Delaware), Associate Professor of Nanjing University of Science and Technology, Core Member and Master Supervisor of Network Space Security Engineering Research Institute, Block Chain Technology expert in the field of computer network protocol and application, network and information security. Has published more than 20 papers and applied for 7 invention patents. Previously worked at Google, Qualcomm, Bloomberg and many other high-tech companies in the United States, served as R&D engineer and technical expert; has a wealth of experience in computer system design, product development and project management.
submitted by Yayowam to CryptoCurrency [link] [comments]

Introduction to Block.Co BlockChain Tutorial - Hashing - With Example What is Blockchain - YouTube Bitcoin Q&A: Data integrity and validation of keys How to Check Bitcoin Transaction Status on Blockchain  Check Bitcoin Pending Payment

It stretches across all corners of the earth, with computer users in each node verifying the integrity of transaction. The features of the blockchain are they are immutable, comprehensive, and publicly available. It’s these characteristics for why the blockchain is now favored for handling high risk transactions. Cryptocurrencies (including Bitcoin) instead have a built-in scarcity due to their source code which effectively limits the ultimate cumulative number of units which can be created. Bitcoin, for instance, is limited ultimately to 21 million bitcoins and this finite supply makes them similar in this respect to gold or silver. In an exclusive interview with Blockchain.News, ... “the need for verifying the integrity of the sources of goods only has increased in importance since COVID hit.” He went on to describe another area of the blockchain space that has begun to take shape of late, namely the novel application of a digital identity to fight against COVID. The idea is to have a digital credential for ... Transparency and Integrity Thanks to integrity and transparency, public verifiability is one of the most important features that distinguish blockchain technology from a traditional database. Integrity: Users can be sure that the data they retrieve are uncorrupted and unaltered from the moment it was generated. Bitcoin’s blockchain cryptographically links each block added to it, so that a modification of any one of the blocks will easily be caught. And while blockchain logs each transaction involving Bitcoins, it is easy for a relational database to log each SQL command that it receives from clients. Because it is easy to digitally sign data written to a relational database, it is also easy to get ...

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Introduction to Block.Co

For more tips like these visit http://bodymindsuccess.com/bitcoin or subscribe to our channel Any node on the Blockchain can calculate this hash, verifying the integrity of each block, making it tamper proof. Blockchain is de-centralized. Unlike traditional databases, it is not owned by ... Blockchain/Bitcoin for beginners 9: Bitcoin difficulty, target, ... Using MD5/SHA256 Hashes to Verify File Integrity - Duration: 7:45. odah 23,308 views. 7:45. Blockchain Basics Explained - Hashes ... About Merkle Trees, used for Efficient Data Verification. In today's episode Nick... branches out and discusses Merkle Tree, that's all I've got for this one. ===== I'm not a financial adviser. Do ... Blockchain explained. Shai Rubin, CTO of Citi Innovation Lab, explains in an easy and simple way the basics of blockchain.

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