Blockchain digital currency system source code

1. It is reported that the Central Bank of China is testing the digital currency based on blockchain
according to media reports, the people's Bank of China has completed a test on December 15, which shows how to conct transactions and clearing in the distributed ledger system
it is reported that this test was concted jointly with China's mainstream commercial banks, including ICBC, Bank of China and Weizhong bank< The report reads: "the people's Bank of China believes that digital currency can not only rece circulation costs, but also increase transparency, inhibit money laundering and tax evasion."
the report even suggests that Shanghai bill exchange pilot digital currency and set up a national bank bill transaction. At the same time, the people's Bank of China will also establish a digital currency Research Center, and is recruiting experts in big data, cryptography and blockchain technology< The report comes after Zhou Xiaochuan, the governor of the people's Bank of China, issued a statement in February in which he hinted that the people's Bank of China was considering using blockchain to issue digital currency
moreover, this test was concted at the time when the people's Bank of China launched an investigation into China's bitcoin exchange, which started early this month and has led to many changes in trading policies
as the world's first standard digital currency, Puyin takes 1 billion Tibetan tea as the primary standard asset, writes 1 billion Tibetan tea assets into the blockchain through digital encryption technology, and records the identification, evaluation and right confirmation of Tibetan tea.

2. In recent years, blockchain digital assets represented by bitcoin have become popular all over the world. Financial institutions, technology companies, investment companies and other participants at home and abroad have invested a lot of human, material and technical resources in the research, development, design, testing and promotion of blockchain digital assets. In order to realize the main characteristics of "four can and three can't" of blockchain digital assets, we can build the core technology system of digital assets by relying on 11 technologies of security technology, transaction technology and trusted guarantee technology. First of all, security technology is used to ensure the fluidity, storability, controllable anonymity, unforgeability, non repeatable transaction and non repudiation of blockchain digital assets. Digital currency security technology mainly includes basic security technology, data security technology and transaction security technology. Basic security technology includes encryption and decryption technology and security chip technology. Encryption and decryption technology is mainly used in currency generation, secret transmission, identity verification and other aspects of digital assets. The establishment of a perfect encryption and decryption algorithm system is the core and foundation of the digital assets system, which needs to be customized and designed by the national password management organization. Security chip technology is mainly divided into terminal security mole technology and smart card chip technology. Digital assets can be traded in the form of mobile terminal based on terminal security mole. As the carrier of secure storage and encryption and decryption operation, terminal security mole can provide effective basic security protection for digital assets. Digital asset system trading platform blockchain technology research and development of data security technology, including data security transmission technology and secure storage technology. Data security transmission technology transmits digital asset information through ciphertext + MAC / ciphertext + hash to ensure the confidentiality, security and non tamperability of data information; Data security storage technology stores digital currency information by means of encryption storage, access control, security monitoring, etc., to ensure the integrity, confidentiality and controllability of data information
transaction security technology includes anonymous technology, identity authentication technology, anti plicate transaction technology and anti-counterfeiting technology. Anonymity technology realizes controllable anonymity of digital assets through blind signature (including blind parameter signature, weak blind signature, strong blind signature, etc.) and zero knowledge proof; The identity authentication technology verifies the user's identity through the authentication center to ensure the validity of the digital asset trader's identity; The anti plicate transaction technology ensures that digital assets are not reused by means of digital signature, serial number and time stamp; Anti counterfeiting technology ensures the authenticity of digital assets and transactions by means of encryption and decryption, digital signature and identity authentication. Secondly, the online transaction and offline transaction of digital assets are realized by transaction technology. Digital asset trading technology mainly includes online trading technology and offline trading technology. As a legal currency, digital assets should not be rejected by any unit or indivial, and can be traded online or offline. Online transaction technology realizes online transaction of digital assets through online device interaction technology, online data transmission technology and online transaction processing; The off-line transaction technology realizes the off-line transaction of digital assets through the off-line device interaction technology, off-line data transmission technology and off-line transaction processing technology. Finally, trusted guarantee technology is used to provide a safe and reliable application environment for the issuance, circulation and transaction of digital assets in blockchain. Digital asset trustworthiness assurance technology mainly refers to trusted service management technology. Based on trusted service management platform (TSM), it ensures the security and trustworthiness of digital asset security mole and application data, and provides security chip (SE) and application life cycle management function for digital asset participants. Trusted service management technology can provide application registration, application download, security authentication, authentication management, security evaluation, trusted loading and other services for digital assets, which can effectively ensure the security and credibility of digital assets system
what is blockchain? Blockchain technology, also known as distributed ledger technology, is an Internet database technology, which is characterized by decentralization, openness and transparency, so that everyone can participate in database records. Blockchain technology development blockchain technology development what is a blockchain system? Blockchain system is a database system with integrity. The data written into the system will be automatically copied to the nodes of the blockchain, which can achieve transactional data preservation, support the management and development of databases in various instries, and be proced in combination with various needs. 294.497 billion US dollars, or 2.60%. This week, five new projects entered the top 100, namely FST, ZB, Wix, wax and MXM. On August 11, the price of bitcoin was $11523.58, up 3.20% from last week, and Ethereum was $216.09, down 3.86% from last week. The 24-hour turnover of this week increased by 2.63% over the same period last week; Among the top 100 projects, the total market value and average market value of currency projects increased significantly, and the classification composition of global blockchain assets top 100 projects was stable.

3. Decentralized or cold wallets are relatively safe. The private key is backed up by itself and can be checked on all data links. As long as the private key is not leaked, the assets will not be stolen.

4. At present, large enterprises are still facing some of the same international payment problems. The transaction speed is slow, the cost is high, once there is any error, it is difficult to trace the payment. In order to solve this problem, many enterprises will use digital currency to settle accounts, or use digital currency to pay for procts and exchange national currencies through digital currency. Using blockchain technology to make real-time payment for enterprise customers, these payments do not need expensive third-party verification, and the settlement can be completed in a few seconds. At present, few enterprises like Yingtang Zhongchuang apply blockchain technology to the development of digital currency system. Developers and engineers need to design systems that can adapt to changes.

5. There is not much information about Kyushu digital currency on the Internet, but it is not very safe to get this kind of digital currency from some fragmented information. The route of publicity and promotion should be MLM route. It is recommended to stay away from this currency
a real digital currency should have the following points:
1. It can be traded on the digital currency trading platform
2. The information of operation team is open and transparent
3. Have a good application scenario planning
4. It is a digital cryptocurrency developed based on blockchain technology
5. The source code is transparent and can be viewed by anyone
it is obvious that the so-called Kyushu digital currency does not have these conditions and is naturally different from bitcoin, Ruitai currency, Qianjin card and other digital currencies.

6. Decentralized, open and transparent payment and collection technology. If you don't understand, I'll take you to make one. Completely free blockchain digital currency.

7. Blockchain and digital currency can be said to be closely related, and the application of blockchain technology in the development of digital currency related systems is also certain
even though many enterprises have invested in the research of blockchain, there are few domestic projects of blockchain, so we should make a certain distinction. At present, there are few enterprises applying blockchain technology to develop digital currency system. For example, the digital currency system scheme developed by Yingtang Zhongchuang has many references. There are many systems developed by Yingtang Zhongchuang. You can have a look at them.

8. Is this a star chain?

9. In fact, there are many domestic companies developing blockchain technology, most of the "traditional" bitcoin companies are actually studying, and many emerging "blockchain companies" have sprung up. Take a look at the development plan of Yingtang Zhongchuang.