区块链的段子,区块链通俗易懂的段子

最近，区块链这个新技术抢占了大家的视线，它的原理可能很多人都不了解，下面就给大家讲解一个区块链通俗易懂的段子，希望能够帮助大家更好的理解区块链。

区块链可以比作一个账本，所有的信息都被记录下来，比如某种货币的买卖，股票的买卖等。每一次的交易都会被记录到区块链上，每个区块的前后都会有一个加密的链接，这就是区块链。

另外，区块链的安全性也是很强的，因为它是分布式数据库，所有的信息都是被分散存储的，这样就避免了单一的数据库被攻击的情况，所以区块链是一种非常安全的技术。

最后，区块链技术还可以用于认证，因为它可以记录每一次的交易，从而可以验证每一次的交易是否真实可靠，所以可以作为认证的一种方式。

总结起来，区块链就是一个账本，它可以记录每一次的交易，它的安全性也是非常强的，而且它还可以用于认证，这就是区块链通俗易懂的段子。

从上面的段子中，我们可以看出，区块链技术的应用非常广泛，它可以用于记录交易，保证安全，还可以用于认证，所以它的应用前景非常广阔。

区块链技术的发展也是非常迅速的，它的发展也会带来新的应用场景，比如金融、物联网、智能合约等，都可以借助区块链技术来实现。

当前，区块链技术正在蓬勃发展，它的应用场景也越来越广泛，它将会给我们带来更多的便利，让我们的生活更加美好。

㈠ Why is the blockchain suddenly popular?

The blockchain is popular! He's so hot that he almost has no friends! In the past few days, I have been bombarded with various popular science jokes about blockchain, just like the talk about crowdfunding, equity, and original stocks in the past two years. When you go out and chat with people, if you don’t talk about blockchain, others will be embarrassed to chat with you. Textbook explanation: An intelligent peer-to-peer network that uses distributed databases to identify, disseminate and record information. It is a distributed database system jointly participated by different nodes and an open ledger system.

The "after the rules are set, everyone registers spontaneously" in the WeChat organization corresponds to the concept in the blockchain that is "decentralization, no single user can control it" it". The "registration status in the WeChat group" in the WeChat group corresponds to the concept of "point-to-point peer-to-peer network" in the blockchain. In the WeChat group, "as long as you are connected to the Internet, you can know the latest progress", which corresponds to the concept of "game mechanism" in the blockchain.

㈡ Give examples of other practical applications of blockchain

Starting from November 8, the Walmart Jinhai Road branch in Baoan, Shenzhen will provide users with blockchain electronic invoice issuance services. , the electronic invoice issued will be directly entered into the consumer's WeChat card wallet. This is the first time that electronic invoices have been applied to large chain retailers.

In fact, on August 10 this year, Shenzhen’s Guomao Revolving Restaurant issued the country’s first blockchain electronic invoice. So, what are the characteristics of blockchain electronic invoices that make Shenzhen, a pioneer city in the country, willing to use it as an important "Internet + Taxation" project in the "Smart Tax" Innovation Laboratory between the Shenzhen Municipal Taxation Bureau and Tencent this year? What about floor-to-ceiling products?

1. It is more convenient to issue invoices

In the past, when issuing invoices in supermarkets, you had to check out at the cashier and then go to the service desk to queue up and issue invoices based on the shopping receipt. If the user provides wrong information at this time, it will be very troublesome to void the invoice and reopen it. The emergence of blockchain electronic invoices allows enterprises to apply for invoices on the blockchain; users can issue invoices on the chain, and after the transaction is completed, they can apply for invoices by themselves by scanning WeChat on their mobile phones, and invoice collection is electronic. and convenience, achieving "instant invoicing of transactions", making the entire process more convenient and faster.

2. Supervision is more convenient

Since blockchain electronic invoices are issued directly in the system, there are fewer human intervention factors, and for tax regulators and managers, the tax bureau In other words, technological innovation can achieve full-process supervision, realize paperless intelligent tax management, and make the tax process more controllable.

3. Financial information is more authentic and reliable

Due to the addition of the underlying technology of blockchain, the information on electronic invoices becomes tamper-proof, which makes internal financial statistics within the enterprise. Various opportunities for fraud are avoided, the financial reimbursement process is optimized, and work efficiency is improved.

It is almost foreseeable that in WoWith the participation of global giants like Erma, electronic invoices will be used in more fields. In the context of this year's tax reform, technological development will also provide greater support to the tax system of Shenzhen, an international metropolis.

㈢ A simple and easy-to-understand introduction to what is blockchain

Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin. The blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction and is used to verify the validity of its information (anti-counterfeiting) and generate the next block.
In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is distributed cryptographically to ensure that it cannot be tampered with or forged. Account book. Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses automated scripts to A new distributed infrastructure and computing paradigm that uses smart contracts composed of code to program and manipulate data.
European crowdfunding and Ethereum both utilize blockchain technology.

㈣ Give an example of what is blockchain

Question 1: What is blockchain technology? What exactly is blockchain? What is blockchain? 1. Data blockchain is an important concept in the Bitcoin financial system. It records transaction record data on the entire Bitcoin network, and these data are shared by all Bitcoin nodes. Through the data block, we can query each transaction record. A look at the history of Bitcoin transactions. 2. Example: There are three persons A, B, and C. All funds of A and B are kept by C. And every financial transaction must be recorded by C. Now assume that A and B each have 1 million in custody of C. Then: A spends 80,000 yuan to B, then C's account book record will subtract 80,000 yuan from A's name, and add 80,000 yuan to B's name. If B transfers 50,000 yuan to A, C will add 50,000 yuan to A's name and subtract 50,000 yuan to B's name in the account book. A spends 50,000 yuan to B, then C's account book record will subtract 50,000 yuan from A's name, and add 50,000 yuan to B's name. 3. The role of the data blockchain is similar to that of C’s account record book. It records the user’s ownership of Bitcoin and the records of all users’ Bitcoin transactions. It’s just that this “account record book” is recorded by the mining software of every Bitcoin miner on the network. If a Bitcoin transaction is confirmed by the data blockchain, the relevant information will be recorded in the data blockchain. Bitcoin’s “account record book” is called the data blockchain. All data blockchains on the network form Bitcoin’s distributed network database system. 4. The essence of data blockchain technology is decentralized data storage, transmission and certification in a distributed structure.This method uses data blocks to replace the current Internet's dependence on central servers, so that all data changes or transaction items are recorded on a cloud system, which theoretically achieves self-certification of data during data transmission. In far-reaching terms, this Beyond the traditional and conventional information verification paradigm that relies on the center, it reduces the cost of establishing global "credit." This point-to-point verification will produce a "basic protocol" and is a new form of distributed artificial intelligence. A new interface and shared interface for human brain intelligence and machine intelligence will be established.

Question 2: What is the transaction process of the blockchain? Best to give an example 20 points 1. Definition
Blockchain is like an open network ledger. It originated from Bitcoin and is the underlying technology of Bitcoin. In a Bitcoin transaction, all the information recorded in the transaction is packaged into a "Block" for storage. With the expansion of information exchange, blocks are linked to each other, forming a blockchain.
2. Characteristics
Digital currency represented by Bitcoin is a peer-to-peer electronic cash system. Among them, each transaction will be broadcast to all participants in the network, and will be recorded in the ledger after multiple confirmations. This ledger is the "blockchain". Each participant will have his own ledger. In this way, when false information occurs, it can be broken through mutual verification, thereby ensuring network security.
In the blockchain, every node is equal, and there is no centralized management organization. This "decentralization" feature makes the blockchain unnecessary to rely on third parties, and its operation does not require any human effort. intervention, capable of independent self-validation. In addition, the blockchain network is open to the world, and anyone can query data through the public port, so the entire system is highly transparent.
3. Application
In short, the blockchain is a trusted database and a reliable "ledger". In the future, it will be used in cross-border payments, securities, loans, voting, etc. For example, in cross-border payments, with the security provided by blockchain, money can be sent to the world anytime and anywhere, thus eliminating many intermediate links and high handling fees.

Question 3: What is blockchain? What does it mean in layman’s terms? What is China’s attitude towards blockchain? What can blockchain do? Blockchain, a great technology that accompanied the birth of Bitcoin, is currently being used in the financial field to significantly reduce transaction costs and improve efficiency, which is enough to excite Wall Street. However, this is just the tip of the iceberg. Its potential applications are very broad and will subvert every aspect of our lives in the future.
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. One of the most basic characteristics of Bitcoin is decentralization. recent daysIn the past few months, financial giants have gradually begun to pay attention to this technology of Bitcoin and have used this technology in non-monetary fields, such as stock trading, election voting, etc. (1) Art Industry
Artists can use blockchain technology to declare ownership and issue numberable, 100% edition works in digital form for any type of artwork. It even includes a marketplace where artists can buy and sell through their website without the need for any intermediary services.
(2), Real estate industry
Use blockchain technology to solve various problems faced by everyone involved in real estate, including the naming process, land registration, agency intermediaries, etc.
(3), Insurance Industry
The financial industry has always been the most sensitive to advanced technology. Traditional banking and securities industry giants have been involved in the booming blockchain venture capital investment since 2014, with total global investment reaching US$1 billion within two years.
(4) P2P wallet
Personal assets can be traded through this P2P wallet in the future without going through any central institution, such as Bitcoin.
Most blockchains are in their infancy, mainly overseas. There are very few good domestic blockchain projects, so it is not recommended for any non-professionals to invest in blockchain projects. If you are very interested in blockchain technology and have a technical or financial background, it is recommended that you consider starting a business in this area. In terms of the blockchain protocol system, the lowest layer is the underlying technology of the blockchain, including the technical protocols of the blockchain, as well as some platform routing and basic algorithms; in the middle layer, some application interfaces and some credentials must be solved Issuance and verification, including some industry platform services, big data analysis, etc. This is a very rough classification, and there should be more detailed classifications; the top ones are some applications of blockchain, including finance Some applications and some applications in other aspects, the Internet of Things and so on.
Introduction to Bubi Blockchain
Bubi Blockchain has been focusing on the research and development and innovation of blockchain technology and products since its establishment. It has a number of core technologies and has achieved substantial results in many aspects. Radical innovation has resulted in a number of core technological achievements, such as: mathematically provable distributed consensus technology, fast large-scale ledger access technology, multi-chain general ledger technology that supports business expansion, and interconnection technology between heterogeneous blockchains. wait. On April 25, "Gege Points" introduced the concept of blockchain into the points system, jointly opened it up with multiple parties, issued and redeemed points, and promoted the circulation of points. Each cooperative institution can jointly participate in transaction verification, ledger storage, and real-time settlement; the third-party payment platform of the enterprise points issuer makes the entry and exit of points more flexible. Bubi has developed its own basic blockchain service platform, which has been applied in equity, supply chain, points, credit and other fields. Bubi has been committed to building an open value circulation network with decentralized trust as the core, allowing digital assets to flow freely.
A simple understanding of blockchain is a technology at the bottom of Bitcoin, which is also a peer-to-peer electronic cash system that can realize peer-to-peer value delivery. We should distinguish between Bitcoin, Bitcoin blockchain, blockchain and blockchain. Blockchain technology and other concepts. In countries with relatively developed finance in the past, finance and blockchain technology have a long history, and the legislation of digital currencies and blockchain networks is also very important. With the advent of the financial era, large financial institutions are studying blockchain technology. They have their own teams and conceptual technologies. Slowly, banks in various regions are also participating in digital currency discussions. The application and support of this technology are not only that. The influence of blockchain on enterprises is also huge. For larger domestic enterprises, Bubi Blockchain is also used in various equity, supply chain, points and other fields. Major domestic financial institutions and enterprises have taken a fancy to the new industry. value, they have developed their own blockchain platforms, and blockchain has instantly become a new innovative industry in China. In terms of overseas internationalization, the United States has already obtained 15 blockchain patents at the end of last year compared to China. Blockchain financial applications are entering a new stage in an all-round way. Various applications will become more and more in-depth, and related changes will also become more and more profound. It is attracting more and more attention and will form a huge new trend... >>

Question 4: What is blockchain technology? What is blockchain? How to explain the concept of blockchain? People in each industry have different understandings, and relevant explanations are gradually emerging due to more and more real-life applications. With the popularization of this blockchain technology, the related results are getting bigger and bigger. If we want to understand this technology, we must have an in-depth understanding of reality.
In the past six months, the concept of blockchain has gradually become popular in China, and a blockchain whirlwind has taken off in the financial circle. Blockchain has attracted the attention and favor of more and more people in the industry due to its unique technical advantages. Blockchain technology, which is decentralized (or multi-centered), highly transparent, cannot be tampered with, and has no single point of failure, is entering the field of vision of financial institutions and enterprises. It has at least been used in digital currency, payment exchange, registration and settlement, Digital assets, traceability and anti-counterfeiting, supply chain, Internet of Things and many other fields have moved from theoretical discussions to practical applications.
"Blockchain" was first introduced with "Bitcoin" released in early 2009. Blockchain has become the basic protocol and technical application for the launch, recording, and circulation of Bitcoin. Although Bitcoin has been controversial since its inception and cannot even be regarded as a "currency" by governments and monetary authorities, the blockchain technology used in Bitcoin has been recognized by governments, including governments and monetary authorities. extensive attention.
Why has blockchain become a rapidly heating up hot technology and topic?
The most important of these may be that the launch of Bitcoin based on blockchain technology has opened up a new relationship with traditional society ( Brand-new technologies such as Internet user identity verification, wealth confirmation, transaction records, and notarization verification that are not much related to offline) and are completely used in the online world (online)The exploration and trial of technology and rule systems provide people with alternative paths and unlimited imagination to adapt to the development of the Internet society.
Judging from its application in Bitcoin, blockchain is a set of new network blocks (BLOCK, also called communities) formed by combining encryption technology with the Internet. Bitcoin configuration, netizen identity verification, and Bitcoin (value) confirmation formed by mining, Bitcoin transaction records, and extended encryption of Bitcoin cross-block flow (value transfer) (added block and transaction time identification, etc. Internet protocol rules and accounting (Ledger) system including block chain, full encryption, mutual authentication, etc., including factor) registration and verification. Precisely because Bitcoin is not a substitute for offline legal currency, but is issued and managed by non-legal currency authorities, mainly imitating the model of gold, and is completely new and decentralized protected and supported by basic Internet protocols and strict encryption technology. Internet currency (virtual currency) has thus formed a new set of currency rules and systems that are different from and not subject to real social laws, and can be bought, sold or exchanged with legal currency. It has been more than 8 years since Bitcoin was launched. There has been no record of funds or user information being stolen. Its security has been verified, and its efficiency and cost of fund settlement also have obvious advantages. This has made people's confidence in the blockchain technology used in Bitcoin continue to increase, and people have become more and more aware that although blockchain is a technology and protocol pioneered and applied by Bitcoin, the blockchain Chain is not the same as Bitcoin, and its application is by no means limited to Bitcoin. The application of blockchain can be decentralized or centralized; it can be a public chain model or a private chain model. Therefore, after Bitcoin, blockchain technology is also constantly developing and innovating, and constantly exploring new application fields, especially in the financial field.
The reason why blockchain is valued highly by more and more people is because the development and widespread application of the Internet have caused more and more economic exchanges and transaction activities to be conducted online, and the online world (or online world) society) is rapidly expanding, enriching and active, and online transactions must solve the efficiency and security protection issues of the parties' identity verification, value verification, transaction records, inspection and verification, etc., and require strict intermediaries and agreements (rules or constitutions). In this regard, traditional thinking and customary practices are to follow the development trajectory of the transfer of offline transactions to online and push the common rules and practices of the real (offline) society to the online (network) society. However, in practice, it is increasingly It is difficult to adapt to the needs of online transactions.
For example, for the identity verification of the parties, the natural choice is to use the information on the identity documents protected by the laws of various countries as the basis, and then add account or transaction passwords, as well as facial recognition, iris, fingerprints and other biometrics to conduct online transactions. Verification, but this method first enables citizens in the cross-border interconnected online world toThe information is restricted by the administrative jurisdiction of real society...>>

Question 5: What is the so-called "blockchain"? Blockchain itself is a tool called decentralization and trustlessness. For example, when you graduate from university, the current practice is to have a certificate recognized and issued by an authoritative agency as your certificate. This setting is more troublesome, because this is a piece of paper, and paper can be forged, so there will be various gaps. The issuing authority is also a person, and there will be various gaps in the middle. As long as it is related to people, whoever There are various possibilities related to media. The blockchain provides a great opportunity. As soon as you graduate, you will have a record on the blockchain. No one can change this record. This thing exists objectively. You, as a physical existence , and then as a data existence, the blockchain was born. In this case, anyone who wants to check where you graduated can easily solve the problem. This is similar to the big data often involved in social networking (WeChat) and payment platforms (Alipay, Yibao).

Question 6: What is blockchain? Can you explain the principle of 10-point blockchain in plain language: decentralized distributed accounting system
Blockchain The core of the technology is that all currently participating nodes jointly maintain transactions and databases. It makes transactions based on cryptographic principles rather than trust, so that any two parties who reach an agreement can directly conduct payment transactions without the participation of a third party.
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Technically speaking, a block is a data structure that records transactions, reflecting the flow of funds for a transaction. The blocks of transactions that have been reached in the system are connected together to form a main chain, and all nodes participating in the calculation record the main chain or part of the main chain. A block contains the following three parts: transaction information, hash hash formed by the previous block, and random number. Transaction information is the task data carried by the block, specifically including the private keys of both parties to the transaction, the number of transactions, the digital signature of electronic currency, etc.; the hash formed by the previous block is used to connect the blocks to realize the past The order of transactions; random numbers are the core of transaction completion. All miner nodes compete to calculate the answer to the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for update, thus completing a transaction.
1.1 What is Blockchain
Blockchain (BlockChain) refers to a technical solution that collectively maintains a reliable database through decentralization and trustlessness. This technical solution mainly allows any number of nodes participating in the system to associate and generate a series of data blocks (blocks) using cryptographic methods. Each data block contains all the information exchange data of the system within a certain period of time, and generates Data fingerprints are used to verify the validity of its information and link it to the nextdatabase block.
?
In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. Behind all systems there is a database, which is a big ledger. Then who will keep this ledger becomes very important. At present, it is whoever owns the system who keeps the accounts. Each bank’s account books are kept by each bank, and Alipay’s account books are kept by Alibaba. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are new transaction data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write the recorded content to the ledger, and Send the contents of the ledger during this period to all other people in the system for backup. In this way, everyone in the system has a complete ledger. Therefore, this data becomes very safe. A tamperer needs to modify more than half of the system node data at the same time to truly tamper with the data. Such tampering would be extremely costly, making it nearly impossible. For example, Bitcoin has been running for more than 7 years. Countless hackers around the world have tried to attack Bitcoin, but so far there have been no transaction errors. It can be considered that the Bitcoin blockchain has been proven to be a safe and reliable system.
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1.2 Why is there blockchain innovation?
Human beings need to communicate during their activities, and communication is based on information. In the past, information circulation was not convenient enough to satisfy market participants. There is a demand for information, so intermediaries and centers are born. This centralized system has problems such as high cost, low efficiency, value dispersion, "information islands" and insecure data storage. However, due to technical and environmental factors, this system continued to operate for many years until the emergence of the Internet. The starting point of the first generation of the Internet is the TCP/IP protocol, which is an open code that implements a unified format for peer-to-peer transmission of information by all nodes on the network, and brings the basic values ​​of freedom and equality required by a global unified market into programmed, protocol-based, and reliably Execution. The Internet eliminates low-value, high-cost intermediate chains and achieves low-cost and high-efficiency global information transmission in a decentralized manner.
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However, the first generation of the Internet did not solve the problem of information credibility. Activities that can be decentralized on the Internet must be activities that do not require credit endorsement, and activities that require credit guarantee must be activities involving centralized third-party intermediaries. Therefore, Internet technology that cannot establish global credit has encountered great obstacles in its progress - people cannot participate in any value exchange activities on the Internet in a decentralized manner. To realize value exchange, people still need third-party intermediaries based on credit (such as banks, clearing agencies, exchanges). The global centralized credit system still has problems such as high operating costs, low efficiency, and vulnerability to attacks and damage. For example, each country's legal currency has different credit values ​​and incompatible clearing systems, which adds a lot of cost to global trade.
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Therefore, what the second generation Internet must break through is: how to establish global credit in a decentralized manner? Let...>>

Question 7: Explain clearly what is blockchain in an easy-to-understand manner. The English name for blockchain is Blockchain. Block literally means block, block, and chain means chain, chain. Therefore, together they are translated into blockchain.
1. Use cryptography technology to encrypt and decrypt so that records cannot be tampered with. Common blockchain encryption methods include hash algorithm, RSA algorithm, elliptic curve algorithm, etc.;
2. The huge amount of calculation needs to be supported by a reasonable reward mechanism. Because every transaction must be recorded, Bitcoin’s blockchain has more than 60 gigabytes so far. Every new transaction requires confirmation of the information related to the trading account to ensure that the transaction is valid. The huge amount of calculation requires a computer with powerful computing power to complete.
In order to encourage the participation of powerful computing power, Bitcoin provides two rewards: one is to issue a certain number of Bitcoins to these computers every day; instead, all transfer fees are awarded to these computers. (The technical term for these computers is "mining machines", and the people who hold the mining machines are called "miners".)
Biying China is working hard on the digitization of assets and has launched the digital currency crowdfunding platform Biying China.

Question 8: What is blockchain? Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.
In May 2016, the Currency Blockchain Research Center published the first book in China that introduces blockchain in simple terms, "Blockchain: Defining a New Pattern of Future Finance and Economics." It introduces the impact of blockchain technology on future finance and economy

Question 9: What is blockchain? For the time being, this is a relatively high-end technology. It connects all nodes (which can be understood as servers) through p2p network technology. Complete data (blocks) are stored on each node. The addition and withdrawal of any node will not affect the normal operation of the chain. Data is embodied in the form of data blocks. Blocks are connected to each other and can be understood as a one-way linked list. The hash value of the nth block is generated based on the hash of the n-1th block, the transaction recorded in the current block, and the random number as parameters. In this way, if you want to modify the data of the historical block, you have to modify all the blocks from the modified block to the final block. The difficulty can be imagined.
The blockchain also introduces a consensus mechanism and an incentive mechanism. There is no way to describe it too comprehensively here. I hope everyone can discuss and learn together

Question10: What is blockchain: This explanation of blockchain is more understandable. Blockchain refers to a technical solution that collectively maintains a reliable database through decentralization and trustlessness.
In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. There is a database behind all systems. You can think of the database as a big ledger. Then who will keep this ledger becomes very important. Currently, whoever owns the system keeps the accounts. Tencent keeps the accounts of WeChat, and Alibaba keeps the accounts of Taobao. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are any data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write his recorded content into the ledger, and record this Within a period of time, the contents of the ledger are sent to all other people in the system for backup. In this way, everyone in the system has a complete ledger. In this way, we call it blockchain technology.
Blockchain technology has become the darling of the financial community in China and has become a hot topic. Domestic Puyin Group has launched Puyin, a tea-based digital currency.

What are the application examples of blockchain?

1. Judicial evidence storage

On September 18, 2018, the Hangzhou Internet Court was officially launched on the chain. Became the first court in the world to use blockchain for trial.

It is understood that the complainant can submit electronic evidence such as the contract, rights protection process, service process details, etc. online through the online complaint portal to nodes on the chain such as notary offices, judicial appraisal centers, CA/RA institutions, and courts. Come and witness and endorse together to provide one-stop service for the prosecutor. The Internet Court of Hangzhou, Zhejiang Province made a public judgment on a dispute over infringement of the right to disseminate work information online, and for the first time confirmed the legal validity of electronic data stored using blockchain technology.

2. Logistics field

In early 2018, Cainiao and Tmall International jointly announced that they have used blockchain technology to track, upload, and verify the logistics of cross-border imported goods. Link information.

After all nodes in the logistics chain are connected to the blockchain, the goods will be traceable from the manufacturer to the consumer, forming a complete chain; the more links the goods are missing, the more fake they will be exposed. Product probability is greater.

3. Electronic invoices

On August 10, 2018, Shenzhen Guomao Revolving Restaurant issued the country’s first blockchain electronic invoice. It is understood that this issued block The chain electronic invoice is led by the Shenzhen Municipal Taxation Bureau and Tencent provides underlying technology and capabilities.

Different from traditional electronic invoices and simple electronic invoices uploaded to the chain, this blockchain electronic invoice combines "fund flow and invoice flow" into one, integrating invoice issuance and The combination of online payment simplifies the entire process of invoice application, invoicing, reimbursement, and tax filing.

About the practical applications of blockchainThere are many more uses, you can learn more about relevant information.

㈥ What should the phenomenon and application of blockchain look like

1. The revolution of blockchain

Until the 7th year after the emergence of Bitcoin , its underlying core technology blockchain has only begun to become known to people. With the wealth effect caused by Bitcoin’s multi-million-fold increase, blockchain is becoming more and more popular. Its value is widely recognized and it is generally considered to be the core technology leading the fourth industrial revolution.

In 2018, Xu Xiaoping, a well-known angel investor, raised his arms and shouted: "The blockchain revolution has arrived! We must embrace this revolution!" With one stone, it caused thousands of waves, and soon the official blockchain learning book was launched online , official media interpreted that a wave of entrepreneurship and recruitment are coming one after another. In 2019, blockchain was officially designated as “an important breakthrough for independent innovation in core technologies.”

Under this situation, blockchain has become an out-and-out "new trend", and blockchain application has become a keyword. It has significant advantages in optimizing business processes and building trustworthy systems. How can we use these advantages of blockchain technology to empower the real economy?

Not only blockchain project parties are trying, but also Chinese Internet giants represented by BAT, financial systems and mobile operators represented by China Merchants Bank, Bank of China, and Ping An Insurance, etc. They are all actively carrying out "blockchain+", and it is also in full swing overseas. Facebook, Goldman Sachs, JPMorgan Chase, etc. are all actively promoting it.

2. Blockchain+

On August 10, 2018, Tencent issued the first blockchain electronic invoice. As of July 3, 2020, invoices were issued Volume reaches 25 million. Blockchain electronic invoices have the advantages of simple invoicing, on-demand supply, low cost, high efficiency, and anti-counterfeiting. Tencent Blockchain quickly occupied the market with first-mover advantages in blockchain + government affairs and blockchain + taxation.

Ant Financial, owned by Alibaba, began to deploy blockchain as early as 2015. So far, Ant Blockchain has open alliance chain, BaaS platform and other products covering dozens of application scenarios. It has reached on-chain cooperation with many well-known global companies such as Intel, Jingdezhen Porcelain, and Bayer. The Internet also entered the blockchain very early and launched blockchain games, blockchain certificate storage and other services. Currently, the number of certificates stored on the chain has exceeded 100 million.

In 2019, the scale of China's blockchain industry alone reached 1.2 billion yuan. Data from the research institution Research and Markets shows that the output value of blockchain technology in the telecommunications field will surge from 4.66 million US dollars in 2018 to 2023. 993.8 billion US dollars in the year. Against this background, 2020 will usher in multiple policy benefits.

1. Officially include blockchain into the scope of new infrastructure and new technology infrastructure;

2. Hunan released the "Three-Year Action Plan for the Development of the Blockchain Industry in Hunan Province (2020-2022)";

3. Guangzhou launched the "Guangzhou City Promotes Blockchain Industry Innovation Implementation Opinions on Development (2020-2022)";

4. Beijing issued the "Beijing Blockchain Innovation Development Action Plan (2020-2022)";

5. Jiangxi launched a blockchain service hall;

6. Wuhan held a special event for the transformation of blockchain technology and scientific and technological achievements;

7. Blockchain application at Chongqing Smart Expo The innovation competition plans to invest a huge amount of 50 million yuan as investment incentives.

However, although the implementation of blockchain in financial, government affairs, public welfare, games, agriculture, manufacturing, medical care, copyright and other physical fields has achieved remarkable results, it has also played an active role in fighting the new crown epidemic. role.

However, due to the influence of the general environment, more funds, resources, and attention have been attracted to the direction of blockchain empowering the real economy, but the core native applications of blockchain have been ignored.

3. Blockchain native applications

The Internet has opened an era of information explosion, and blockchain will bring a future where value flows freely. In today's global economic and financial system, affected by many factors such as ideology, cultural systems, business models, and technological levels, the cost of value transfer is high and the efficiency is low, especially in cross-border payment scenarios.

In the future blockchain era, value transfer will be like information transfer: global, instant, free, and equally enjoyed by everyone. All offline assets such as stocks, securities, identities, and real estate can be freely converted on the chain.

Moreover, the impact of blockchain technology has far exceeded the technical category itself. It is also an idea. The soul of blockchain lies in consensus. In the era of blockchain, truly powerful vitality will be born in community consensus and application implementation, and community and consensus will become the main body and soul of the industry.

In a community with consensus, individual energy and value will be fully stimulated, offsetting the fission effect of traditional centralization, breaking the original solid underlying structure, and reshaping new business and social values.

Therefore, blockchain native applications should be based on community and consensus, give individuals a path to realize their value, and be able to maximize the application ecosystem that stimulates individual energy and creativity, ultimately breaking monopoly and forming Decentralized free value exchange network.

Individual energy and value are multi-dimensional and highly subjective. These blockchain model designs obviously cannot fully stimulate individual energy, and are even far from it.

Native applications that truly conform to the spirit of blockchain should be grand and comprehensive in application model design, taking into account all online and offline value-creating behaviors of individuals, and providing them with personalized use. Individual areas of expertise vary.

Borrowing from the Pareto optimal solution theory, each individual's energy can be maximized to maximize the energy of the whole, and only then can the original centralized business model be broken and a free flow of global individuals be formed. A peer-to-peer value transmission network builds a new decentralized business infrastructure, changes the value creation and delivery model, and reshapes the values ​​of the entire society.

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㈦ What are the application examples of blockchain technology

Express delivery The logistics industry is a very suitable industry for the application of blockchain technology.

In fact, the logistics ecosystem is relatively complex and there are many groups involved in the process.

The industry itself is a complex of segments with the concept of "flow". Starting from the initial "business flow", it gradually gave birth to "logistics", as well as the corresponding support of "capital flow" and "information flow" , complete the service chain.

There is a key issue behind the emergence of various "flows", which is the transfer of commodity ownership.

Coincidentally, many of the types of problems solved by blockchain technology are related to the trust friction generated during the transfer of asset ownership.

The application of blockchain technology can significantly improve the processing speed and efficiency of settlement business in the express logistics industry, effectively solve the problem of traceability and anti-counterfeiting of items, and fully ensure information security and the privacy of senders and recipients.

In the field of promoting application in the express logistics industry, there are domestic blockchain companies doing applications in this area, such as Walton Chain.

Last year, Waltonchain reached a strategic cooperation with Huodou (Xiamen) Technology Co., Ltd., using Waltonchain’s “RFID blockchain” technology solution to help it improve its logistics solutions and move goods to Dou puts data on the chain in all aspects of its logistics turnover, such as entering and exiting the warehouse, receiving goods and other key nodes. After deploying the reading and writing system, when the object passes through any link, the relevant data can be read by the RFID reader and writer, and the relevant data can be read by the RFID reader. The corresponding behavior is converted into data and uploaded to the blockchain. Users can trace the entire logistics process with one click.

Four business scenarios that can be implemented in the real environment are suitable for the application of blockchain technology.

Scenario 1: Insured express delivery

Revolving around the insured scenario, express companies transport goods, insurance companies provide guaranteed goods, merchants provide goods sales, sellers purchase insured services, and the government regulates the industry.

So, what should be recorded on the blockchain? There are several key points. The logistics details of the goods, accounts, identities, claims, other reference data and other information are recorded on the blockchain.

Guaranteed price is the concept of contract. When the customerAfter the package is signed for normally, the account claim is automatically triggered, the contract ends normally, and the automatic settlement of the premium ends. If there is a problem or missing piece, the insurance company's claim process will be triggered.

Scenario 2: Charity express delivery

For charity activities, such as the "One Cent" campaign, one cent from the cost of each charity package is donated to the account of the charity organization . In this scenario, the express delivery company is still responsible for the transportation of goods, the public welfare organization provides the execution of public welfare activities, and the poverty alleviation merchants provide the sales of public welfare and poverty alleviation products.

Then what is recorded in the blockchain is the logistics details of the goods. After the package is signed for, it will be recorded on the blockchain, automatically triggering the transfer from the logistics company's public welfare account to the public welfare organization's account. When the public welfare activities are completed, the entire process is open and transparent, which avoids the public's distrust of social welfare activities.

Scenario 3: Industry blacklist sharing

At present, the blacklist of express delivery employees is still mainly offline. We hope that through blockchain technology, each company can record the blacklist of employees on the blockchain, and other companies can also query it, and the data cannot be modified, and can be traced back to which company this person worked in What kind of inappropriate behavior and other information.

Scenario 4: Supervision of safety incidents in postal delivery channels

Many express companies will install security inspection machines, and the government also wants to know whether each logistics company has any transportation safety hazards. Through the distributed accounting model, each express delivery company can record the effective information of the security incident on the blockchain when a security incident occurs, so that regulatory agencies can monitor it in real time and cannot be tampered with.

What are the applications and successful examples of blockchain?

Blockchain can be applied to all walks of life. Taking e-commerce as an example, in order to solve the problem of counterfeit goods, Regarding pain points in logistics, integrity, supervision, etc., major companies and platforms are also showing off their skills and tricks. Blockchain is used as one of the more feasible means, so how does it solve these problems?

First, supervise the production process of goods. When visiting online stores, the biggest worry is buying fake products, especially overseas products. In addition, there is also the price problem caused by fake products. How to buy products at reasonable prices while ensuring the authenticity is really a headache. The transparency and irreversibility of blockchain technology allow consumers to check the production place, manufacturer, raw materials, etc. of goods at any time.

Second, trace and track the transportation of goods. A series of operational activities such as supply chain, inventory, and logistics involved in e-commerce will involve multiple intermediaries. The decentralized, non-tamperable, and traceable characteristics of blockchain make the entire process transparent, and any partner can You can check the inventory and payment status, which can effectively solve the "bullwhip effect" problem in the supply chain. (Bullwhip effect: refers to a phenomenon of demand variation amplification in the supply chain. The fundamental reason for its occurrence lies in the upstream and downstream of the supply chain.There is a lack of communication and trust mechanisms between enterprises, and demand information is constantly misinterpreted in the process of being transmitted up the supply chain. ) At the same time, blockchain smart contracts can be used to regulate intermediaries, such as logistics and payment management partners. Simplify the huge management system to improve efficiency.

Third, guarantee product sales and after-sales service. At present, three-quarters of the transactions in China's e-commerce market are completed on the mobile terminal. Payment trust is a major problem that the platform needs to solve, and blockchain is known as a "trust machine." To give you an example, many websites Stores will fake orders or falsify data in order to get good reviews. Once the purchase information is uploaded to the chain, it cannot be tampered with to ensure authenticity. You can check the merchant's real transaction records to ensure whether the merchant is trustworthy.

Fourth, protect user privacy. The private key, public key, and encryption algorithm of the blockchain can solve this problem. Each user has his own independent address, and due to the anonymity of the blockchain, companies cannot publish or store user information and are protected from hackers. s attack.

For specific implementation, we take the two domestic e-commerce giants as examples. Alibaba has begun to introduce blockchain since 2016. First, Ant Financial launched blockchain technology to pay for charity donations, which was the first test of blockchain technology; in 2017, Ant Financial’s technology experiment The Office announced the opening of blockchain technology to support imported food safety and product authenticity traceability; in 2018, Cainiao and Tmall International announced the use of blockchain technology to track and verify the full logistics information of cross-border imported goods. These data include goods The country of origin, country of shipment, loading port, mode of transportation, import port, bonded warehouse inspection and quarantine order number, customs declaration number, etc.

Logistics and product traceability are indeed a good entry point for blockchain to enter the e-commerce field. As one of the domestic e-commerce giants, JD.com is certainly not to be outdone. In 2017, JD.com announced the establishment of " Jingdong Quality Traceability Anti-Counterfeiting Alliance", united government departments at all levels to build a Jingdong blockchain anti-counterfeiting traceability platform through the alliance chain; in December of the same year, it jointly announced the establishment of the China National Engineering Laboratory for E-commerce Transaction Technology with Walmart, IBM, and Tsinghua University The first safe food blockchain traceability alliance.

㈨ What are the practical application cases of blockchain in China

The most widely used application of blockchain is still in the field of financial technology, such as digital asset transactions. As an underlying technology, blockchain is the technical implementation method of Bitcoin. The rapid application of blockchain technology also requires virtual currency. In the past, a large-scale economic scenario that required mutual trust and extensive collaboration among many people could only be solved through a centralized approach, which was very inefficient. The emergence of blockchain technology solved this problem and eliminated this center. An important reason why this center can be removed is that virtual currency provides an endogenous economic incentive mechanism for the blockchain.Give people incentives to participate in economic activities transformed by blockchain. Of course, blockchain will have more extensive and mature applications in more fields in the future. For example, in November last year, the State Grid submitted a patent application titled "About blockchain power transaction control methods and devices." This year, Xi'an The City Wall International Marathon is also the first in the world to use blockchain technology to register athletes’ race data, winning links and other information on the blockchain, using its traceable and non-tamperable technical features to open up information channels between events and effectively Guaranteed the reliability of competition results.