国内区块链模式有哪些,国内区块链模式研究现状

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❶ What is blockchain and what is the operating model of blockchain?

Blockchain is sometimes called distributed ledger technology, which is through the use of decentralization And encrypted hashes make the history of any digital asset unchangeable and very transparent without any concealment. Blockchain operates to allow people to share valuable data in a secure, tamper-proof manner. The most classic ones are the three important concepts of blockchain in the MIT Technology Review.

If you want to fully share public information with everyone, you must rely on the blockchain to maintain integrity and build trust among users.

❷ What is the popular blockchain model now?

The explanation of the Ministry of Industry and Information Technology is as follows: Blockchain technology uses block chain data structures to verify and store data, and utilize distribution It is a new distributed infrastructure and computing paradigm that uses a node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses smart contracts composed of automated script codes to program and operate data.
For example: For example, the grandson asked Li Zi to borrow 100 yuan, but Li Zi was afraid that he would default on the loan, so he asked the village chief to do a notarization and add the amount to the account. This is called centralization. But if, instead of asking the village chief, a loudspeaker in the village shouts, "I, Li Zi, lent my grandson a hundred yuan! Please record it in the account book," this is called decentralization.
In addition, you can refer to the representative product of blockchain, Bitcoin

❸ What are the practical applications of blockchain in China

1. WeBank uses blockchain Technology for loan clearing
WeBank and Shanghai Huarui Bank have launched a trial operation of an inter-bank joint loan clearing platform based on alliance blockchain technology to optimize the settlement and clearing of the two banks' "Weilidai" joint loans . With the introduction of this blockchain system, all information is recorded on the blockchain network and cannot be tampered with. It is liquidated simultaneously during the transaction process, achieving real-time liquidation and saving a lot of manpower and material resources. This is the practical application of "consortium chain".

2. China UnionPay uses blockchain technology to realize inter-bank point redemption
China UnionPay and IBM are trialling a shared points system using blockchain technology. The use of this blockchain system allows users to redeem reward points across banks and platforms. That is to say, a user's points in one bank can be exchanged for points and rewards from other banks, or even multiple airline miles and supermarket rewards. The efficiency of using bank points has been greatly improved.
3. Toyota uses blockchain technology to track auto parts
Toyota joins the R3 Alliance and uses blockchain technology to store the production, processing and usage of each part in the blockchain. In this way, when there is a problem with a car part, the source of the part can be easily and quickly found.
4. Central Bank’s Blockchain Digital Bill Trading Platform
The central bank’s blockchain-based digital bill trading platform has been successfully testedachievement. The introduction of digital currency for settlement can realize the simultaneous transfer of capital flow and information flow in digital bill transactions, thereby realizing DVP pay-versus-payment settlement. At the same time, the blockchain digital identity solution solves the problem of repeated KYC authentication for users between different financial institutions.
5. Ant Financial Blockchain Application
Ant Financial’s blockchain technology tested the waters of insurance and helped Xinmei Life Insurance Co., Ltd. launch the first charity rescue account in the domestic insurance industry. Blockchain technology allows Every fund flow is open and transparent, every fund flow data cannot be tampered with, and the whereabouts and use of every fund can be traced. Ant blockchain is used in food safety traceability and product authenticity traceability.

Author: Blockchain Development Company
Link: https://www.jianshu.com/p/5ff8437bd58b
Source: Jianshu
Copyright belongs to the author . For commercial reprinting, please contact the author for authorization. For non-commercial reprinting, please indicate the source.

❹ What is the development status of my country’s blockchain technology?

Domestic blockchain technology has now been conceptualized from the very beginning and has now been applied to actual business scenarios. , such as Wanglian Technology’s Vonetracer traceability system, their blockchain traceability technology has been applied to actual agricultural products.

❺ A popular explanation of what blockchain is, and you can understand it with one picture

A popular explanation of what blockchain is, and you can understand it with one picture

Blockchain is a hot topic recently. Many people are discussing blockchain issues. Recently, some domestic companies have begun to use blockchain technology to develop some products. Blockchain is used for It is an underlying technology of Bitcoin. It is because of the popularity of Bitcoin that many people have paid attention to Bitcoin. However, many people still do not understand what blockchain is. Let me explain blockchain to me.

Bitcoin is a digital currency that many people are paying close attention to, and the underlying technology of Bitcoin is blockchain. Blockchain is a computer technology and a new application model. The blockchain is like a large database ledger, in which all transactions are recorded. The person who records this ledger is very different from traditional bookkeepers. Traditional bookkeepers are usually led by specialized bookkeepers. The accounting party performs the operations. For example, Taobao and Tmall are accounted for by Alibaba, and WeChat transactions are accounted for by Tencent. In the blockchain, all people participate in accounting. Everyone who participates in accounting has a ledger. .

Let me give you an example. For example, A wants to borrow 10,000 yuan from B. B wants to lend the money to A, but is worried that A will default on the debt after borrowing the money, so he will ask for a loan when borrowing money. A third-party notary helps B write down the account. This is the traditional accounting method, which relies on a third party to gain trust. The accounting books are in the hands of the third party. This kind of accounting way of existenceThe possibility of three parties tampering with the ledger, and decentralization means that there is no need for a notary when borrowing money, and there is no need to rely on a third party to gain trust. The decentralized situation is like when B lends money to A, B holds a loudspeaker Shouting "A asked me to borrow 10,000 yuan, please help me keep the account." At this time, everyone will take the account book in their hands to record the account. Everyone has an account book, which can avoid the account book being Possibility of tampering.

❻ Many places have issued blockchain development action plans "Blockchain+" to show off their potential

< p> [Zhongya Finance] Recently, Hebei, Guizhou, Hunan, Beijing, Guangzhou, Ganzhou and other provinces and cities have released blockchain development action plans to plan for the construction of blockchain platforms and promote the "on-chain" of enterprises. Domestic The blockchain industry is ushering in rare development opportunities. At present, blockchain technology has been implemented in judicial certificate storage, government affairs management, people's livelihood services, food traceability, supply chain management and other scenarios. In the future, it may show its talents in new infrastructure, industrial chain transformation, public services and other fields, providing high-quality services. Quality development is gaining momentum.

During the epidemic prevention period, Mr. Ma, a Beijing citizen, fell in love with online shopping. After he recently received a box of Anhui Dangshan Su pears, he found a QR code with "Blockchain Traceability" written on the package. Scanning it with his mobile phone revealed the name of the e-commerce company selling the pears, the location of the authentic place of origin, and the product. "Identity" information such as features and quality alliances to which it belongs is clear at a glance, and even the number of QR code scans is clearly displayed. Mr. Ma said: "Seeing such detailed and accurate product information makes me more confident in the quality of the product."

The application of blockchain technology in online shopping has been an active innovation technology application scenario in recent years. an epitome of. According to the "2018-2019 China Blockchain Development Annual Report" released by the China Blockchain Ecological Alliance, blockchain technology is most actively used in the financial field, and has formed an important role in cross-border payments, asset management, supply chain finance, etc. A batch of new products that can undertake actual business; phased results have been achieved in the fields of electronic certificate deposits and charity; and exploration has begun in the fields of medical services, government management, transportation and logistics.

Against this background, many domestic provinces and cities have recently issued blockchain development action plans. In the plan, building a blockchain open innovation platform and promoting the "online" of key enterprises have become the next focus of local work. For example, the "Beijing Blockchain Innovation Development Action Plan" issued by Beijing in early July proposes to take the lead in forming a "Beijing Plan" for blockchain to empower economic and social development by 2022; Guizhou Province issued in early May "About Accelerating District Development" "Opinions on Blockchain Technology Application and Industrial Development" proposes that by 2022, 3 to 5 blockchain open innovation platforms and public service platforms will be built, and more than 100 growing blocks will be introduced and cultivated.chain enterprises; the "Hunan Province Blockchain Industry Development Three-Year Action Plan (2020-2022)" issued by Hunan Province at the end of April proposed that more than 10 blockchain public service platforms will be built by 2022 to promote 30,000 enterprises On the chain; Guangzhou, Guangdong, and Ganzhou, Jiangxi have also proposed to cultivate a number of key blockchain enterprises and promote typical application demonstration scenarios.

During the epidemic, various places "increased" the development of blockchain technology. Experts said that since this year, the demand for digital social governance innovation and soft and hard infrastructure construction has increased significantly, and the potential of blockchain technology in the technical transformation of industrial chains and government governance has become more prominent.

“As more and more people realize and enjoy the convenience brought by digital life, they are more determined to carry out digital reform. , the determination to actively 'get on the chain'." Pan Helin, executive director of the Institute of Digital Economy of Zhongnan University of Economics and Law, said that during the epidemic prevention period, blockchain technology has advantages in information management, emergency supplies and food safety traceability, and identity authentication management. obvious. For the digital economy or blockchain technology, this epidemic is a development opportunity. After the epidemic has spawned a large number of digital demands, blockchain will play a more important role in production and supply chain collaboration, public safety warning, and financing of small and medium-sized enterprises. Big energy.

Use blockchain technology to build a "virtual factory" for Nankang furniture to trace the origin of Gannan navel orange products... In recent years, Ganzhou blockchain companies have continued to emerge, involving digital licenses, digital bills, and anti-counterfeiting traceability , filing and notarization, copyright protection, digital finance and other businesses are also increasing. To this end, the local government has recently established a blockchain service hall to ensure that these businesses are handled centrally.

Some experts said that from a nationwide perspective, this kind of blockchain service model innovation will crack the blockchain technology and Attempts to combine people's livelihood and the real economy are gradually increasing. As an emerging technology in the digital economy era, blockchain technology also faces many difficulties and obstacles in scientific research and implementation. In terms of technology, blockchain encryption technology faces technical risks such as inference and even traceability; in terms of implementation, there are limited application fields. , low industrial agglomeration effect and other problems; in addition, there are bottlenecks such as lack of professional talents.

Action plans released in many places also target these difficulties and congestion points. For example, the "Beijing Blockchain Innovation and Development Action Plan" proposes four key tasks: innovation-led, building a blockchain theory and technology platform; demand-driven, building a number of multi-field application scenarios; cluster development, cultivating integration linkage The blockchain industry; ensuring the elements and building a leading blockchain talent echelon.

Affected by the epidemic, the accounting period of downstream engineering projects in some industries has become longer, and the pressure on upstream small and medium-sized suppliers has increased accordingly. This once made some small business owners very worriedI'm so anxious that I don't dare to take on big orders.

How to open up business flow, logistics and capital flow, so that the upstream and downstream of the industrial chain can "turn" together? Zhejiang’s approach is to build a blockchain receivables chain platform. The platform puts accounts receivable accumulated in the supply chain online as "blockchain receivables", solving the risk of fraud that is difficult to prevent in traditional accounts receivable financing. After upstream suppliers receive the blockchain receivables issued online by the supply chain enterprises, they can transfer them to the bank for cash on the same day, eliminating the need for cumbersome procedures such as verification and verification, witnessing and confirmation of rights, and "hardening" the upstream and downstream industry chains. “Funds have been mobilized.

Currently, blockchain applications are still in the early, niche and pilot stages. With the implementation of 5G technology, the increase in market data volume and the improvement of technical issues, more application cases are expected to appear in the future.

Experts said that in order to achieve safe and sustainable development of blockchain technology, we must first solve the technical problems, especially the realization of technical security, decentralization, scalability and other issues, which requires all parties to Cooperate fully; secondly, we must promptly pass legislation to protect the legal issues that may be faced during the development of blockchain technology, and at the same time severely crack down on the use of blockchain technology to commit illegal crimes.

❼ What is the development trend of China’s blockchain in 2021?

Looking forward to 2021, the top-level design of my country’s blockchain will be further improved, application standards for various industries will be gradually established, and the development direction will be from Technology leads the way into market penetration; blockchain integration applications have begun to be implemented in many fields such as finance, supply chain, government affairs, etc., and the industrial scale will show rapid growth. However, many problems currently faced by the development of blockchain in our country still need to be focused on and started to be solved or alleviated in 2021. For example, the independent innovation capabilities of core technologies still need to be further strengthened, security issues and talent gaps need to be improved urgently, and integrated applications The scene still needs to be explored in depth. Therefore, CCID Research Institute proposed to accelerate the construction of the blockchain ecosystem, improve standards and regulations, improve the supervision system, strengthen the independent innovation capabilities of core technologies, promote the coordinated development of blockchain and other new technologies, and vigorously cultivate professional talents to achieve The blockchain industry is developing healthily.
Yibaoquan has been committed to the research and development and application independent innovation of blockchain since 2014. It is a blockchain electronics company that has maturely used blockchain technology to solidify and store electronic data and has been recognized by judicial authorities. Data storage and security agency. Through the pioneering "blockchain + judicial + application" model, with blockchain technology as the underlying technology and electronic data storage and preservation as the basis, we have launched intellectual property protection (micro-copyright), electronic contract signing (gentleman's signature), Internet Notary System (Zhongzhengbao) has three application layer brands.
E-Baoquan jointly launched the "Preservation Chain" open platform together with the Notary Office, Arbitration Commission, Copyright Protection Center, CA Organization, etc. At the same time, it has connected with the Guangzhou Internet Court and the judicial chain involving more than 30 courts led by the Supreme People’s Court. Continuously improving the "blockchain + judicial" ecosystem, Yibaoquan can provide different groups with one-stop blockchain preservation services such as evidence collection, evidence storage, and certificate issuance.service.
Currently, it has obtained 15 independent invention patents, 27 copyrights, ISO 27001 information security system certification, Ministry of Public Security Level 3 certification, national double-high enterprise, and the 2018 National Ministry of Industry and Information Technology Industrial Internet Pilot Demonstration Project (the only Blockchain selected projects), and one of the first batch of domestic blockchain information service registration companies by the State Cyberspace Administration of China in 2019.

❽ What model is blockchain?

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain (Blockchain) is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. , each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block.

The biggest problem if such technology is to be put into application is the "impossible triangle problem"

That is, it cannot achieve scalability (Scalability) and decentralization () at the same time. , Security (Security), you can only get two of the three.

Most of the public chain projects currently on the market are difficult to put into use on a large scale.

If there is a public chain project that can solve this problem, it will be a revolution in the blockchain.

Backed by the world’s first and largest encrypted digital currency payment platform and wallet solution with a user base of more than 3 million, Velas (Virtual Expanding Learning, virtual expansion autonomous learning system) is a Artificial intelligence (AI)-optimized neural networks enhance its consensus algorithm, self-learning and self-optimizing public chains, and are committed to improving the security, interoperability, and high scalability of the transfer process and smart contracts. Velas uses AI-enhanced DPoS consensus to achieve complete decentralization without reducing security and transaction speed.

Velas has recently launched the Velas desktop wallet and web wallet

Velas web wallet

Velas web wallet allows users to process transactions within their web browser Cryptocurrency, purchase Velas token VLX, and support easy viewing of detailed history of all wallet transactions. Login credentials have an additional layer of security with two-factor authentication feature.

In addition to the basic functions of creating and restoring wallets based on mnemonic strings, all data stored in the Velas web wallet is encrypted using the RSA-256-CBC algorithm to ensure that user data is not compromised by the system owner. or stolen or misappropriated by external attackers.

A prominent feature of the web version of the wallet is that it supportsVLX tokens are exchanged for other cryptocurrencies, and the wallet will continuously refresh the current VLX exchange rate for all fiat currencies for users' reference.

Velas Desktop Wallet

Velas Desktop Wallet is a highly secure wallet program suitable for Windows, macOS, and Linux operating systems. The desktop wallet also uses the same mnemonic features and RSA-256-CBC encryption algorithm as the web wallet.

Unlike the web version, which is an online wallet, the Velas desktop wallet allows users to store their wallets directly on their computers, avoiding potential risks of online attacks, including phishing, IP fraud and XSS. It is worth mentioning that both the desktop and web wallets provide users with an automatic lock option for security issues. If not used for a long time, they will need to enter a password when logging in again before they can access again.