如何看待区块链老梁的问题,现在老梁说区块:链

如今，区块链被越来越多的人所认识，老梁也提出了“区块链”的概念。那么，如何看待老梁提出的区块链？本文将从三个方面来解析：区块链技术、区块链应用和区块链安全性。

一、区块链技术

区块链技术是一种分布式数据库技术，它实现了去中心化、自治、不可篡改的特性，可以有效地解决传统中心化系统存在的信任问题。它是一种可以记录任何数据的公开可信的分布式账本，可以用来存储任何类型的数据，包括货币、文件、智能合约等。

区块链技术的核心是分布式账本，它可以分布式存储和管理数据，而且数据可以被安全的共享。它使用密码学和分布式计算技术，可以保证数据的安全性和可信性，从而可以更有效的管理数据。

二、区块链应用

区块链技术可以用来处理复杂的业务场景，并且可以更有效的提高业务效率。由于区块链技术的分布式特性，可以极大的提高业务的安全性，从而使得业务的运行更加稳定。

区块链技术可以用来处理数字货币、智能合约、身份认证、供应链金融、知识产权管理等复杂的业务场景，可以大大提高业务的安全性和可信性。

三、区块链安全性

区块链技术的安全性可以说是其最大的优势，因为它可以保证数据的可信性和安全性。由于区块链技术的去中心化特性，它可以极大的降低系统的风险，从而使得数据更加安全。

此外，区块链技术还可以提供更强大的安全机制，比如加密、数字签名、多签名等，可以有效的保护数据的安全性。

总之，区块链技术是一种具有重大意义的新兴技术，它拥有强大的技术优势，可以有效解决传统中心化系统存在的信任问题，并且可以极大的提高业务的安全性和可信性。

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㈠ How to define blockchain and what are its application scenarios

Many people now think that blockchain is a universal technology that can do anything. Make blockchain technology a myth!
Regarding the definition of blockchain technology, American scholar Melanie Swann defined blockchain technology as an open, transparent and decentralized technology in her book "Blockchain: A New Economic Blueprint and Introduction" database.

Definition of Blockchain: Narrow VS Broad

As for the application scenarios of blockchain technology, it is natural to combine the differences between blockchain and other technologies. In terms of system characteristics.

Blockchain technology features include:

Blockchain is a global A database storage system that can be operated collaboratively in various places is different from traditional database operations where read and write permissions are in the hands of a company or a centralized authority (a characteristic of centralization). Blockchain believes that anyone with the ability to set up a server can participate. Nuggets from all over the world have deployed their own servers locally and connected to the blockchain network to become a node in this distributed database storage system; once joined, the node enjoys exactly the same rights as all other nodes and obligations (decentralized, distributed characteristics).

At the same time, those who provide services on the blockchain can perform read and write operations on any node in the system. In the end, all nodes around the world will complete the process again and again according to a certain mechanism. Synchronize in sequence to achieve complete consistency of data in all nodes in the blockchain network.

At the beginning of this year, the term blockchain began to enter everyone’s lives. From national leaders to aunts who dance square dances, everyone knows this term. This term is widely known by Bit Brought by coins.

As we all know, the first few dozen bitcoins could only be exchanged for one pizza. At its peak, it was worth more than 20,000 US dollars, which has skyrocketed by more than a thousand times. This has also benefited a large number of wealthy people. Currently, there are blockchain The virtual currency generated by technology is gradually entering everyone's life, and many people have joined the ranks of currency speculation. I often hear people say that if you buy the right currency a hundred times, a bicycle will become a sports car, and one coin will turn a young model. You can imagine how many of them are involved. Attractive.

Since 2008, various games applying blockchain technology have also become popular, such as development games (Network Letts Dog, 360 Block Cat), mining games (NetEase Planet, Virtual Earth, Gongxinbao), these are attracting everyone to join in the name of blockchain, and of course there are some that are really reliable, which requires everyone to identify them carefully.

The three words "blockchain" were completely ignited during the Spring Festival that just passed, and the limelight overshadowed everything. Some people said that this is the arrival of a new era, and the past has become ancient.Of course, some people say that everything is just hype and is ultimately a bubble.

In fact, blockchain technology is not a new concept. It has been applied to many industries, such as electronic signatures, as early as the past two years. Recently, the third-party electronic signature platform eShanbao revealed the latest progress of blockchain applications to NewSeed.

Currently, blockchain technology is mainly used in e-signing products for certificate deposit and certificate issuance. The application scenarios include copyright protection and online signing. , web page forensics, phone recording, email storage of evidence, etc.

Take the rights protection of online works as an example. Since online rights protection generally adopts the method of collecting evidence after the fact, real-time confirmation of rights is not carried out in the process of evidence generation, so the entire confirmation process is difficult. The copyright process is time-consuming, difficult and costly to obtain evidence, and extremely difficult to prove and trace the source. It cannot meet the characteristics of rapid dissemination and large quantity of online works.

eShanbao's new intellectual property protection solution based on timestamp + blockchain starts from the user's real-name authentication and solidifies the information generated in the process in real time. Electronic data, and through the time source service synchronized with the National Time Service Center, online works are stamped with legally valid timestamps to prove that electronic files have not been tampered with in a certain period of time. Blockchain technology can establish point-to-point trust in the network, ensuring that all blockchain nodes can record complete copyright confirmation and transaction records, and can trace their origins, truly realizing anti-repudiation and anti-tampering, and realizing a kind of distribution. trust infrastructure.

Founder and CEO Jin Hongzhou believes that the application of decentralized blockchain technology has greatly improved the efficiency of data storage and certification, and The credibility of the identity of the parties reduces the cost of trust, but it cannot replace the original centralized public key encryption technology. The two should complement each other. Through the combination of the two, it can provide users with real-time and reliable Confirmation plan.

Next, e-Shanbao will also focus on building a smart contract platform based on blockchain technology. Jin Hongzhou said that data storage, Issuing certificates is only a relatively superficial application based on blockchain technology. It is the first step to implement blockchain technology, and the realization of real smart contracts is the second step. "Smart contracts cannot simply be understood as electronic contracts. They refer to a process, from the conclusion of the contract to the confirmation to the final execution." Jin Hongzhou explained.

Through the following limited cases, I hope everyone can understand the actual performance of blockchain technology, thereby stimulating interest in such solutions.

1. Administrative Services

The role and responsibilities of public administration over the centuriesWhat has not changed significantly – or rather, what has changed dramatically is the scale of the data and the specific ways in which public institutions deal with it. Although various digital technologies already exist to help collect and process data, issues such as anonymization, portability, and the immutability of large amounts of data remain unresolved.

Sasha Ivanov, founder, entrepreneur and CEO of Waves Platform and Vostok projects, said, "What the public administration currently lacks is a more convenient user experience (UX) for data use. To improve the user experience , we should introduce some kind of layer to it that acts as a trusted public environment that is transparent and can store data anonymously and immutably."

Governments are working on this by launching the U.S. Federal agency and enterprise-level initiatives such as the Federal Blockchain Initiative are gradually confronting the existence of such problems. The United States held its first federal government blockchain forum in July 2017, and the U.S. General Services Administration currently has more than 200 related use case repositories. Ivanov explained, “Distributed systems can really help us build such a reliable environment, improve our big data work, and even integrate all emerging technologies – including artificial intelligence and the Internet of Things. In fact, , whenever we face any kind of technology, it always embodies the sum of certain other technologies."

Now, the system supported by the blockchain can actually work - this This view has been unanimously recognized by all experts and has become the most important theoretical basis. In other words, what we need to do next is create more production-ready solutions.

2. Payment services

The government needs to process transactions, many of which involve the exchange of funds with citizens. Blockchain technology has huge potential application value in reducing the cost of fund transfers - including using new blockchain-based cryptocurrencies as intermediate transaction carriers, or using blockchain as a means of fund transfer, etc. Once a perfect solution is discovered, the business opportunities will be endless - especially for those who need to conduct frequent cross-border or Internet transactions.

The Jasper project was developed by the Bank of Canada to help it further think about how central banks and other financial institutions should implement payment operations between different banks based on distributed ledgers. The Bank of Canada has also developed its own digital currency variant, “CAD Coin,” to test the feasibility of using a national currency on top of the blockchain.

This project brings to an interesting conclusion that we should say no to proof-of-work public chain systems. In a paper titled "Project Jasper: Is a Distributed Bulk Payment System Feasible?" the author observes that "proof-of-work systems are not suitable for such large transaction processing systems because they assume that all transactions in the systemYidu requires openness and observability to a certain extent. ”

3. Digitization and Intellectual Property

The government is responsible for maintaining copyright records and databases. These records prove the ownership of intellectual property. A blockchain-based system allows various artists, Performers and writers can time-stamp their works and theoretically detect copyright infringements and even retain permanent records of rights. In fact, many governments have taken important exploratory steps in this direction.

Iran recently announced that it will deploy this technology. "Iran Financial Tribune" quoted Morteza Mousavian as saying that "the Digital Media Department of the Ministry of Culture has reached an agreement with a blockchain company to jointly design a usable A system for protecting online copyright. "He also added, "Relevant programs will soon be released to users in an easy-to-use manner. ”

This work is still in the early stages of exploration, but it provides corporate customers with the possibility of preserving records through replication technology. From a theoretical level, companies can use blockchain solutions for financial accounting, And discover the errors in real time.

4. Welfare distribution

The government has the responsibility to create a level playing field for citizens. Citizens who are chronically poor or economically disadvantaged certainly Government support and assistance is needed to ensure that they are able to maintain their lives and acquire the capabilities to continue to develop. However, welfare distribution is neither simple nor often straightforward. Problems such as corruption and imposters have been seriously undermining government programs. Various distribution channels.

In China, the National Council of Social Security Fund is conducting early research on how to use blockchain technology to improve the delivery of national benefits to citizens. At the same time, India is also taking action , Andhra Pradesh and Telangana are already using blockchain to support their civilian resource supply systems.

It is said that many companies, including Microsoft, are also considering using the same technology. These solutions, which will touch individual employees and functional roles, are expected to gradually appear in small businesses in the near future.

5. Tendering activities

In order to build public infrastructure or provide For related services, governments hope to achieve economies of scale and competitive gains through tendering as much as possible. However, the tendering process is often not fair or transparent. Public procurement has long been a major scene of rampant corruption around the world. Transparency International pointed out, “Many governments will award project contracts to one supplier in the absence of fair competition. This allows companies with greater political resources to unfairly outcompete competitors; or companies in the same industry negotiate bids in advance to ensure that each company gets a piece of the tender pie. This will significantly increase the cost of delivering services to the publicBen - We found that corruption issues can increase project costs by 50%. ”

So, how can blockchain technology solve the bidding problem? According to Ivanov, “Unlike decentralized centralized systems, independent ledgers powered by blockchain will be able to improve bidding or Transparency of any other financial processes that need to be tracked. The intervention of blockchain technology will help track the use of funds and ensure that they are paid out as expected and within the allowed time. ”

Currently, Japan’s Ministry of Interior and Communications has announced a blockchain-based bidding system, which means that in industries with serious collusion problems, small and medium-sized enterprises are expected to usher in a more transparent bidding method and Brighter development prospects.

Although quite a few of the cases mentioned previously are far from finalized, they do provide many possibilities for enterprises and governments. Of course, the key lies in implementation; and we All this should also be viewed with optimism, that is, although blockchain technology is often misunderstood by people, it is and will eventually find a direction in which it can exert its own energy!

In layman's terms, blockchain is like There are more than a dozen beacon towers on the Great Wall. If an enemy comes at one place, they will send out smoke. The other beacon towers will know about it and enter a defensive state together. In technical language, it is a distributed ledger, and each node will keep accounts separately. The failure of a single node will not affect the entire network.

How is this distributed network different from the distributed servers of Google Network? Google Network and others The distributed servers still belong to the Google network and are controlled by their central scheduling algorithm. The distributed nodes in the blockchain do not know each other and have no legal affiliation. If you want to go offline and shut down That's fine, but because of the currency rewards, there will always be people who will start up as new nodes to support this network.

After the popular and technical explanation, I hope You already understand. Then the first application scenario is finance. I put the money in Alipay. If Alipay doesn't recognize it one day, there is nothing you can do. But on the blockchain, it is useless if a node does not recognize it. Because other nodes still have my records. The second one is the contract. Nowadays, contracts are signed on paper, which is easy to forge, but it cannot be forged if it is placed on the blockchain.

There are more application scenarios. It is recommended to check the top 100 digital Huobi online to understand the corresponding projects behind them and become a blockchain expert.

Area Blockchain technology was first used in Bitcoin. Blockchain provides a reliable and credible means of organizing data for cross-subject business scenarios. JD.com is essentially a supply chain company, and blockchain technology will first be used in the supply chain in many scenarios.

Blockchain is a decentralized technology. At present, all InternetBlockchain can be applied to all products that can be covered.

The most popular application industry at present is the financial industry.

An application that has been implemented is product traceability. Alibaba and JD.com are already using blockchain technology to fully trace the origin of some of the products they sell. Consumers can trace the origin of the purchased products. There are also many blockchain applications in the digital advertising industry. Since digital advertising traffic fraud causes losses of tens of billions of dollars every year, there are already blockchain application projects based on digital advertising, such as DCAD, which is based on blockchain. The digital advertising application of blockchain technology mainly solves the problem of traffic fraud

In the future, as the application of blockchain technology becomes more mature, it will be applied in many industries, creating a new ecosystem based on technological trust. Mode

The characteristics of blockchain are distributed accounting and decentralization, but the ultimate goal is to make people get along more equally. Technology is meaningful only when it serves human values, and technology that meets human value needs will develop. Therefore, blockchain is in line with human pursuit of freedom and equality, so its trend to become mainstream is unstoppable.

Currently, there are many blockchain gimmicks, which are basically used to issue coins. The newly launched ono is a decentralized, free and global social platform. Due to decentralization, your chat communication information is peer-to-peer and cannot be viewed by others. In other words, your every word and deed will no longer be recorded and reviewed at any time like it is now on WeChat, QQ, and Facebook, freeing you from the trouble of surveillance.

In fact, blockchain technology can be used in any field. Information that previously required third-party confirmation can be completed online and confirmed at multiple nodes, making it difficult (almost impossible) to delete.

At present, blockchain is still in its infancy, and the technology is not mature enough, but it is also a better time to enter.

What is blockchain

If we use non-technical terms to explain blockchain, blockchain is a place where data is stored. However, the data stored in the blockchain is safe and reliable and does not need to be managed by anyone, so In the Internet, a place where data and information are exploding, having such a place would be like a magical treasure.

What can the blockchain do?

If you ask what the blockchain can do, it is better to say what applications require the use of the blockchain. As mentioned earlier, blockchain is a safe place, so wherever data needs to be protected securely on the Internet, blockchain technology needs to be used. For example:

Because the use of blockchain technology can better protect the data of policyholders, in today’s Internet, data is value and wealth, so value protection and value transmission are the future development directions of the Internet. And blockchain technology can really do just that.

If there are any deficiencies, you are welcome to comment and correct me.

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-forgeable. Ledger.

The two parties involved in the transaction do not need to know who the other party is, nor do they need a third party for trust endorsement. They only need to trust a common algorithm to establish mutual trust and conduct direct transactions.

Its characteristics are trustlessness and decentralization. The destruction of each node's ledger has no impact on the entire blockchain. The blockchain runs point-to-point payments without a center that may cheat, and the security is greatly improved. Improved, the entire transaction network has changed from a star structure to a point-to-point P2P structure.

In the future, blockchain will be used in many fields and will have a great impact on human life. . It can be widely used in fields ranging from digital currency to securities and financial contracts, medical care, games, artificial intelligence, smart contracts, Internet of Things, e-commerce, file storage and other fields.

1. Cloud storage

This is the statistics of current cloud storage on the Internet. In terms of volume, Google has the largest volume, which is 8,000PB. So what if we share the idle data on the Internet?

Starlight Cloud builds a blockchain data computing and storage lake through Starlight Chain, with a total storage capacity of 15,000P (approximately 15.72864 billion G) in the future. This will be more than 10 times that of Alibaba Cloud's 1500PB! It is also more than four times the size of the Taizhou Storage Center, the largest storage lake in the world after expansion.

2. Medical aspects

Using blockchain technology to save personal medical records also retains personal medical historical data, which can be used when seeing a doctor or planning for your own health in the future. Historical data can be called directly. These data are highly private, and the use of blockchain technology also helps protect patient privacy.

㈡ How to view the country’s accelerated promotion of blockchain technology

1) First of all, the technical value and positioning of blockchain are clarified, as I most recently At the beginning, the positioning of blockchain should be regarded as a core technology and an important breakthrough for independent innovation.
2) Blockchain, the Internet, and artificial intelligence must be regarded as technologies of the same level, and blockchain must officially enter the category of hard technology development.
3) It points out the development and application direction of our blockchain, including the speech mentioned in this speech that blockchain technology has extended to digital finance, Internet of Things, intelligent manufacturing, supply chain management, digital asset transactions, etc. In terms of application, some regulatory or legal issues will inevitably arise during the application process. What instructions were given in this speech? He mentioned that network governance according to law should be implemented into the management of the blockchain and promote the security and orderliness of the blockchain.development of.
4) Regarding the more important points of application and development, it is mentioned that blockchain can move from reality to reality, empower entities, improve people's livelihood, gain industrial advantages, and better serve the development of the entire industrial economy. In fact, through the study of blockchain technology, from one aspect or the signal released, it expresses the attitude towards innovation and leading of blockchain. I hope that in the development of blockchain, we can first have our own core technology, and we must In today's fierce international competition, we are in a leading position.
5) It is to enhance market confidence in the entire blockchain industry, especially in the application and development of blockchain technology. This has greatly improved market confidence, which is bound to attract more people in the next period of time. More, including the capital market and more talents and research applications will enter this field. More capital, more manpower, and more other social-related aspects including the rule of law and legislation, and multi-faceted attention, will better promote the application and implementation of the entire blockchain technology. This is my opinion on the area. Four points or summary of blockchain technology learning.
If you have been paying attention to blockchain for a long time, in fact, from the national level, including the "13th Five-Year Plan", blockchain technology has been included in the "13th Five-Year Plan" as an important link with artificial intelligence, Big data and cloud computing are being developed as parallel technologies, including the introduction in the second half of 2018, when the Cyberspace Administration of China issued a filing for blockchain application services, which actually affects the development of the entire blockchain from all aspects. Act as a positive guide or protector.
Of course, when it comes to blockchain, everyone may have said in their previous understanding that blockchain will always think of currency speculation and the like. Digital currency is actually only a relatively narrow area of ​​​​the blockchain field. , we now include support from the mainstream of modern society or the national level, more support for the application of blockchain technology in real industries, empowering the development of real industrial economies
The core advantage of blockchain technology is decentralization ization, which can realize point-to-point transactions, coordination and collaboration based on decentralized credit in a distributed system where nodes do not need to trust each other by using data encryption, timestamps, distributed consensus and economic incentives, thereby solving the problem of centralized institutions It provides solutions to the ubiquitous problems of high cost, inefficiency and insecure data storage.
The application fields of blockchain include digital currency, certificates, finance, anti-counterfeiting and traceability, privacy protection, supply chain, entertainment, etc. With the popularity of blockchain and Bitcoin, many related top domain names have been registered. , which has had a relatively large impact on the domain name industry.

㈢ From the perspective of design mechanism, how to understand blockchain

From the perspective of mechanism design, blockchain can be divided into three levels:
The first level is Distributed network, which mainly solves point-to-point communication network problems, is also the basis for the establishment of blockchain.
Establishing a cryptographic ledger system on top of peer-to-peer communication can move from peer-to-peer communication to peer-to-peer transactions. This is the second level of the blockchain - distributed ledger.Book.
Add new incentive mechanisms and governance mechanisms on the basis of distributed ledgers, which is the third level of blockchain - public blockchain, such as the current most typical Bitcoin blockchain.

㈣ How to view blockchain finance

Blockchain finance is actually the application of blockchain technology in the financial field. Blockchain is an underlying technology based on Bitcoin, and its essence is actually a decentralized trust mechanism. Collectively maintain a sustainable growing database through sharing among distributed nodes to achieve information security and accuracy.
Simply understood, blockchain technology can be imagined as a fully centralized, super-secure database. A reliable technical solution for collective maintenance of a data book using a fully centralized approach, integrating distributed architecture, P2P network protocols, encryption algorithms, data verification, consensus algorithms, identity authentication, smart contracts and other technologies to solve the centralized model There are problems such as low security and poor reliability. Although blockchain cannot guarantee 100% security, it is a huge leap forward compared with current data security technology. Unlike centralized databases, blockchains have no single point of failure.
The BSC project of Puhua Business School takes advantage of the full centralization advantage of blockchain to customize and develop the underlying technology of blockchain and build a data sharing platform based on blockchain technology. Relying on the advanced network security system and fully integrating new technologies, new thinking, and new models in the Internet revolution era, a new business model has been formed with the core goal of win-win results for BSC Business Alliance member companies and their associated customers.

㈤ How to explain blockchain in a popular way

“Blockchain technology is considered to be the next generation of disruptive core technology after steam engines, electricity, and the Internet. If the steam engine released People's productivity, electricity solves people's basic living needs, and the Internet has completely changed the way information is transmitted. Then the blockchain, as a machine that builds trust, will likely completely change the way value is transmitted in the entire human society."

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I have just come into contact with the blockchain. There are too many basic knowledge that need to be understood and known. Don’t worry, today I will popularize this knowledge for you. Today, let’s first take a look at what public chains, private chains, alliance chains, and side chains are.

㈥ Re-understanding the blockchain: Enlightenments brought by more than 1,550 application cases

Author: Ran Wei

( This article is excerpted from the "2021 Global Blockchain Application Market Report")

When we talk about blockchain, anyone who knows something about blockchain can talk more or less about related topics. express some of their own opinions. For example: from the perspective of technical system, blockchain is a new application of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm; from the perspective of functional attributes, blockchain hasIt has the characteristics of decentralization, non-tampering, full traceability, traceability, collective maintenance, openness and transparency.

Looking back at the history of blockchain, there is no way around Bitcoin. On January 3, 2009, the Bitcoin genesis block with serial number 0 was born. A few days later, on January 9, 2009, Bitcoin block number 1 was born. When two blocks are connected, the blockchain is "born."

The inventor of Bitcoin, whose pseudonym is "Satoshi Nakamoto", may find it difficult to imagine: In the past 12 years, with Bitcoin as the center, a huge "cryptocurrency family" has spread all over the world. The financial market set off a "big wave" that continues to this day. During this period, innovation and risks related to cryptocurrency are intertwined, progress and bubbles coexist, and pursuit and criticism coexist, and it drives government departments of various countries to continuously improve the monetary and financial systems, social governance and supervision systems.

At the same time, the blockchain that accompanies Bitcoin is also evolving rapidly, and has long gone beyond the scope of "Bitcoin's underlying technology" and has been applied to every corner of social and economic development.

So, what mechanism does blockchain work through? What are its advantages compared to traditional technologies and models? What is its application effect? In the "2021 Global Blockchain Application Market Report" jointly released by Capital Lab and Yuanwang Think Tank, we tried to provide a certain basis for the above issues through research on more than 1,550 application cases around the world in 2020 and the first quarter of 2021. Empirical answer. At the same time, based on the study of these cases, we can establish a new understanding of blockchain: blockchain is trust, blockchain is sharing, blockchain is transaction, blockchain is substitution, and blockchain is efficiency.

In the Bitcoin creation paper "Bitcoin: A Peer-to-Peer Electronic Currency System", "Satoshi Nakamoto" repeatedly emphasized that Bitcoin has the characteristics of not relying on a "trusted third party". That is the characteristic of “decentralization”.

On the other hand, the underlying technology of Bitcoin, the blockchain, is precisely designed for "trust." In other words, reshaping "trust" in the digital age is the most basic function of the blockchain, but this trust has been transformed from trust between people and legal entities to trust between machines and machines. Trust between blocks and between nodes. Interestingly, the subsequent “smart contract” function has further strengthened this trust through its integration with the blockchain.

Identity coding and authentication are the first steps to achieve the above-mentioned trust mechanism, and the distributed identity (Decentralized Identity, DID) system is the core of it. With DID applications, everyone from individuals to organizations to IoT devices, from physical items to virtual products, can be given digital "identities" and achieve trusted interactions. It is precisely because of thisOnly then can certificate deposit, empowerment, verification, circulation, and transactions based on blockchain be realized, and only then can blockchain be implemented in various industries.

Application cases from around the world show that new trust mechanisms provide new rules and motivation for social and economic operations:

l China is comprehensively promoting blockchain electronic certificates Applications such as "one fish, one code", "one fruit, one code", "one tea, one code" and other applications are driving the global Anti-counterfeiting traceability of agricultural products and upgrading of food safety systems;

l Through the combination of blockchain, big data, and artificial intelligence, the credit "portrait" of an enterprise is more accurate and can be obtained faster and more accurately. Lower-cost financing services;

l Public welfare organizations have put charity funds "on the chain" to form a more transparent and standardized public welfare tracking and management system;

l Relevant cities in China have launched a blockchain-based gas cylinder product traceability management system, and the credibility of the source of gas cylinder file information and the level of gas cylinder safety management have been greatly improved;

l Germany is developing its distributed energy resources Assets establishes a digital registration system based on identity authentication to promote the development and trading of renewable energy and cope with the arrival of the digital energy era...

Among the three types of blockchains (public chain, alliance chain, private chain), alliance chain has been the most widely used. In addition to considerations of technical performance, operational efficiency, operability, expected results, etc., this is mainly because all parties in the alliance already have a certain foundation of trust. This also shows from another perspective that in blockchain applications beyond cryptocurrencies such as Bitcoin, "multi-centralization" rather than complete "decentralization" is a more realistic option.

In addition, it is undeniable that unlike the proof-of-work mechanism that Bitcoin “mining” relies on, the blockchain cannot completely ensure the integrity of the on-chain data from the source in the actual application process. Authenticity. In other words, a certain alliance member or node may provide false data intentionally or unintentionally. However, with the help of blockchain's non-tampering, traceability, multi-party consensus and other characteristics, the alliance can identify counterfeiting behavior and impose corresponding punishments, such as "kicking" the counterfeiting members from the nodes. Therefore, in a sense, blockchain-based trust largely establishes alliance members’ awe for the authenticity of data and deters data fraud.

If "trust" is the foundation of blockchain applications, data sharing is the core of blockchain applications. Without data sharing, there will be no cooperation, and the practical application of blockchain will be impossible.

l The State Administration of Foreign Exchange’s “Cross-border Financial Blockchain Service Platform” pilot has been fully launched.The exchange of information between relevant market entities such as insurance companies, banks and enterprises has promoted the development of foreign trade export business;

l The "Preservation/Claims Alliance Chain" jointly established by 11 insurance companies in Taiwan has been put into operation. This platform has achieved "single application and common documents";

l Contour, TradeLens and other blockchain platforms are developing through data collaboration among enterprises, financial institutions, shipping companies, terminals, customs and other institutions. Reshape global supply chains and power the digital transformation of international trade….

l In China, through data collaboration, various government departments have realized "one data, one source, one source for multiple uses, one network, and full network operation";

l Through The "Judicial Chain" platform enables all types of electronic evidence to be seamlessly connected with judicial institutions such as notarization, arbitration, judicial appraisal, and courts, which improves the efficiency of the judicial system while reducing costs;

l Targeting grassroots nationwide The court's "cross-domain collaboration mechanism for trial auxiliary matters" can realize "cross-domain service and cross-domain evidence collection" between courts in different regions, effectively improving the efficiency of trial auxiliary matters and trial quality and efficiency, and reducing judicial operation costs... ….

l China's "Guangdong-Hong Kong-Macao Greater Bay Area Combination Port" project was officially launched, which can support the interconnection and interoperability of trade parties among the five major customs jurisdictions of the Greater Bay Area and become the first connected port in the Greater Bay Area , customs, logistics, enterprise, finance and other trade processes, interconnected and shared blockchain network;

l Japan's KDDI Telecom, Hitachi, Kansai Electric Power, Sekisui Construction and other large enterprises have established blocks Chain Alliance NEXCHAIN ​​to form a cross-industry real estate information sharing and management model and promote cross-industry innovation;

l The French Renault Group completed the test of its blockchain project "XCEED" for zero Sharing compliance information between component suppliers and automakers and simplifying compliance certification….

Although the above application cases in finance, government affairs and various industries are only a few typical cases, they are enough to illustrate that: on the one hand, data sharing is an inherent requirement of blockchain applications. In terms of specific implementation, everything must start from breaking "data islands" and "information asymmetry"; on the other hand, the application practice of blockchain has in turn promoted cross-level, cross-department, cross-industry, cross-region, and cross- Data sharing and unprecedented cooperation across national borders.

It can also be seen from the above cases that based on the transparency, security, trustworthiness and other characteristics of the blockchain, data sharing allows cooperation that originally seemed impossible to be achieved, and more open innovation results; data sharing can effectively improve the operating efficiency of the business system, financial system and social governance system; while various organizations share and cooperate with external institutions,Promoted its own organizational changes and process changes.

Based on trust and sharing, "transaction" is the most intuitive and deepest manifestation of the value of blockchain applications. Currently, blockchain is opening a new chapter in the transformation of transaction models in various industries around the world.

From a functional architecture point of view, blockchain-based transactions are by no means just a change in the transaction process, but integrate the unique functions of the blockchain, which are the key to anti-counterfeiting traceability, supply and demand docking, and warehousing. Integrated integration of blockchain applications such as logistics, payment/settlement, supply chain financing, insurance, and network security.

In terms of application form, blockchain-based transactions transcend the traditional concept of product or service transactions and represent the realization of the value of a wider range of data in circulation.

From the perspective of application scenarios, transactions based on blockchain involve the upgrading of the physical industry, the digital advancement of the financial industry, and the innovative application of the "token economy".

In the physical industry, take the application of agricultural blockchain as an example: on the one hand, supply chain traceability based on blockchain has become an important barrier to food safety; but on the other hand, for growers or For farmers, the supply chain traceability function is far from enough. How to help them expand the sales of agricultural products and obtain more income as much as possible is the "hard truth" for blockchain technology to continue to promote agricultural development. In other industries, the same applies.

Against the above background, new trading platforms in the global physical industry continue to emerge:

l The Indian government uses blockchain platforms to help farmers in remote areas sell agricultural products to reduce the While eliminating intermediate fees, obtain higher income;

l The Swiss company Cerealia builds a blockchain-based agricultural product trading and financing platform to promote the export of agricultural products in emerging market countries around the world;

l The world's largest independent refined sugar producer, Al Khaleej Sugar Company of the United Arab Emirates, launched DigitalSugar.io, a blockchain-based sugar product trading platform, to realize spot-based international raw sugar trading;

l Ganzhou, Jiangxi Province, has launched an international timber electronic trading platform based on blockchain, which will manage the entire timber transaction process on the chain, and will provide the timber market with full industry chain services such as cloud warehouse supervision, logistics, finance, and insurance;
< br /> l Shandong Province launched the Shandong Internet Traditional Chinese Medicine Trading Platform, which will use blockchain and other technologies to achieve online integrated services of quality control, trading, payment, settlement and supervision;

l Suzhou Phase Weitang Town in the urban area has released a blockchain-based pearl online trading platform, which will store the core parameters and test reports of pearls on the chain, and will also add functions such as supply chain management, trade finance, smart contracts, payment settlement, and incentive mechanisms;

l Honeywell launched GoDirect Trade, an online trading platform for new and second-hand aircraft parts, providing a valuable reference for large manufacturers on how to apply blockchain to parts trading and circulation...

In the financial industry, blockchain is promoting the digital advancement of financial transaction business in aspects such as securities trading, asset securitization, trade financing, and cross-border settlement:

l The Australian National Stock Exchange has launched ClearPay, a digital securities trading platform based on distributed ledger technology, which can provide multi-currency, real-time DVP settlement on the same day and will replace the original exchange settlement system;

l Switzerland The company Finka has launched a related securitization token investment platform based on livestock from organic pastures in Bolivia to promote the development of the local livestock industry;

l The American company Securitize has established a Japanese real estate investment platform based on digital securities , aiming to revitalize idle real estate in rural Japan and enhance the vitality of the rural economy;

l China Postal Savings Bank and China Construction Bank completed the first cross-blockchain platform forfaiting transaction, Hua Xia Bank Kunming Branch’s first Realize forfaiting resale business in the secondary market;

l Nanjing Iron and Steel completed blockchain-based iron ore transactions with Rio Tinto of Australia and Vale of Brazil respectively;
< br /> l Baosteel Co., Ltd. and Australia's Rio Tinto completed the first blockchain-based RMB cross-border settlement transaction...

Of course, while blockchain promotes the advancement of financial transaction business, dark sides such as hype, scams, money laundering, and cyber attacks related to blockchain and cryptocurrency continue to follow. How to continue to promote financial innovation while also carrying out efficient risk prevention and control and effectively cracking down on illegal crimes is an important issue that requires long-term response. From a global perspective, China has responded with clear attitudes, strict measures, and effective measures in this regard.

The transaction changes realized by the blockchain in the real industry and financial industry are only the initial stage of the blockchain changing the traditional transaction method. The "Token Economy" is the blockchain "transaction" A higher level of functionality.

Under the framework of the "token economy", from electronic certificates to skill certificates, from credit records to public welfare activity participation records, from social media tracks to carbon emission reduction actions, when various data become When an encrypted digital proof of rights is circulated and exchangeable, it is given the function of "token".

Putting aside the investment/speculation craze of “Non-Fungible Token (NFT)”, we can already see a large number of “Token Businesses” around the world.Early applications of "Economy":

l The HotCity project supported by the Austrian government uses a crowdsourcing model combined with blockchain and gamification tokens to encourage residents to submit heating waste heat hotspots to meet the city's needs more efficiently. Heating needs;

l Ford establishes "Green Miles" for commercial and municipal fleets using hybrid vehicles to help improve urban air quality;

l Xinxiang City, Henan Weibin District issued tokens based on the merchant and enterprise points system in its blockchain industrial park project to establish a new commercial service platform;

l Chengdu released a community governance product based on blockchain " "Chaining Community", residents can obtain "time bank" points on the platform through volunteer services and other activities, and exchange them for benefits and discounts provided by community merchants;

l Global non-profit organization "Mobile Open" The Electric Vehicle Charging Network Working Group (EVGI) of the "Blockchain Initiative" launches a global standard system for decentralized vehicle charging technology, covering the Tokenized Carbon Credit (TCC) scenario;

l Block Chain reward platform MiL.k cooperates with Korean retailers to provide blockchain-based points management services for its members. Members can convert existing points into local MLK tokens through the MiL.k platform, or exchange them for other third parties Points...

As can be seen from the above cases and more, the "token economy" has several distinctive features:

The "token economy" is a broader Data endows asset attributes and tradable attributes, and through cross-domain and cross-platform mutual trust and circulation, it can improve the operating efficiency of the entire social and economic system;

"Token economy" is a new The process of value creation and realization does not necessarily use currency directly as the medium of exchange, but is more reflected in the exchange, mutual benefit and reconfiguration of various elements and resources;

"Token economy" is often related to The combination of incentive mechanisms will effectively reshape the social value system and social credit system by motivating "good people and good deeds", "good companies" and "good institutions".

Overall, " The "Token Economy" will spawn new production factors, reshape production relations, and greatly liberate social productivity; the "Token Economy" represents the evolution of the "Information Internet" to the "Value Internet", indicating that the digital economy is the most exciting The future of people's hearts; the "token economy" based on blockchain has begun to take shape, and has begun to bring continuous and visible changes to economic operations, social governance, and everyone's lifestyle. Whether it is various institutions or individuals , everyone should be prepared in thought and action for this change.

Like other new technologies, blockchain is in application andIn the process of popularization, substitution effects continue to occur in terms of platforms, media, models, methods, etc.: physical documents are replaced by electronic documents, credit records are replaced by certificates, manual review is replaced by data verification, and urban management platforms are replaced by "urban brains" ….

Such substitutions have become the norm:

l Argentina’s central bank has begun a proof-of-concept for a new blockchain clearing system, which may replace the existing clearing system;< br />
l Korea Minting and Security Printing Corporation (KOMSCO) expanded its blockchain digital gift certificate business to replace paper gift certificates and achieved record revenue despite a sharp decline in the issuance of banknotes and coins. Improvement;

l Courts across China have begun to use blockchain electronic seals to replace traditional paper seals in the enforcement of real estate seizures;

l The Shanghai court system is using artificial intelligence , the adoption of new technologies such as blockchain, and explore the use of digital court trial records to replace manual court trial transcripts;

l The Japanese company SUSMED launched a "Clinical Data Monitoring System Demonstration Using Blockchain Technology" pilot, indicating that the drug Or the necessary monitoring process in clinical trials of medical equipment can be replaced by a blockchain system;

l Alipay and Wukong Car Rental have cooperated to launch a "face-swiping" car rental service, which uses blockchain technology and credit-free security mode, tourists can rent a car by simply "swiping their face" and return the vehicle through mobile operations;

l Under the new crown epidemic, local governments in China have intensively launched "non-face-to-face" vehicles that combine blockchain technology ", no contact, zero errands" government service has replaced the traditional offline service method, providing a strong guarantee for the smooth progress of remote bidding, "cloud" customs clearance, financial support, resumption of work and production, etc. during the epidemic... .

In addition, we can also see that through the use of blockchain technology, various enterprise-level services are also realizing substitution and evolution: from paper contracts to electronic contracts, to program-based, Blockchain contracts that can automatically execute smart contracts. Blockchain is pushing contract signing into the era of "chain signing"; from offline human resources companies to online human resources platforms to the blockchain-based human resources market , global human resources services have experienced continuous changes from the 1.0 era to the 2.0 era, and then to the 3.0 era.

Generally speaking, when the blockchain "invades" various industries, it will "mercilessly" delete all unnecessary links and processes, all unnecessary manual operations, and accelerate the The era of paperless, unmanned and automated is coming.

In the process of our analysis of more than 1,550 blockchain application cases around the world, words like "improve", "accelerate", "shorten", "lower", "reduce" and "save"Words such as , "saving" appear frequently in front of our eyes. These words show that the improvement of efficiency is the common pursuit of all parties involved in blockchain applications and is also the most direct result of the substitution effect of blockchain.

Numerous application practices are contributing to this:

l Kenyan company Shamba Records provides blockchain traceability, transaction and financing services to farmers in the country, currently covering more than 6,000 Small farmers and helped them increase their income by at least 40%;

l TradeWaltz, a blockchain trading platform invested by NTT DATA, Mitsubishi and other companies, completed a trial run, and the results showed that the platform can reduce traditional 50% of the workload of the trade process;

l Walmart Canada has significantly reduced invoice disputes with carriers by 97% through the application of the DL Freight blockchain platform;

l The State Grid Corporation of China’s power transaction certificate traceability inquiry platform has been put into operation, automating the entire authenticity review process for registered users and saving 99% of trusted manual review time;

l COSCO Shipping Lines and Shandong Port Group Qingdao Port have cooperated to launch a blockchain paperless import and delivery model, which can save customers nearly 24 hours on average per container;

l Taizhou, Zhejiang uses "materials" The "Internet + Blockchain" recycling system solves the problem of marine pollution control. Compared with traditional processing methods, this recycling system can save 94% of labor costs and 84% of operating costs...

In summary, through the joint action of trust mechanism, sharing mechanism and transaction mechanism, blockchain has formed an obvious substitution effect, improved the operational efficiency of finance, government affairs and various industries, and will Continue to create systemic change. This change is reshaping the relationship between people and machines, people and society, and people and the environment, and clearly points to three ultimate goals: efficiency, well-being, and environmental protection.

㈦ How to correctly understand blockchain technology

Blockchain is a data structure formed by blocks being linked in an orderly manner, where blocks refer to collections of data. Relevant information and records are included in it, which is the basic unit that forms the blockchain.
The special data structure organization form of blockchain gives blockchain technology four main characteristics: decentralization, transparency, contract execution automation, and traceability.
In the future, Jinwowo Network Technology will focus on using blockchain technology to promote the legal circulation and commercial application of big data.

Do you know the essence of blockchain and what is the principle of Bitcoin?

Blockchain has been developed to this day for some time. During this time, people The understanding of blockchain has experienced rapid changes.

The essence of blockchain is technology

Since it comesEssence, what is essence? The essence should be traced back continuously until it can no longer be traced back. Only then can what is obtained be called the essence. The essence of blockchain is a technology. Going back to the original starting point of the blockchain, when Bitcoin was first born, the problem it wanted to solve was the Byzantine Generals Problem. From a professional perspective, it meant how to achieve consistency in a distributed environment. . Blockchain technology is a combination of multiple technologies. It is naturally suitable for multi-party cooperation and can provide a trusted environment for multi-party cooperation.

Application of the non-tamperable characteristics of blockchain

Bitcoin’s technical principle P2P network

Bitcoin is a P2P computer Network, each network node stores all transaction records on the network. Generally speaking, any information can be recorded on one node plus several backups. All transaction records of the network are stored on each node, which results in the transaction records being visible to each node, and each node cannot independently modify the transaction records arbitrarily, thus forming a set of open and transparent transaction records.