区块链怎么产生的,区块链怎么诞生的

区块链是一种分布式数据库，它采用链式结构，将所有的交易信息存储在一个分布式的数据库中，从而实现了信息的安全性和可追溯性。下面，我们就来探讨区块链的诞生，以及它的三个关键技术：加密算法、共识机制和分布式账本。

加密算法是区块链技术的基础，它是一种数字签名技术，可以用来确保数据的安全性和完整性。它使用一种可以防止篡改的算法，使得交易信息在传输过程中不被篡改，从而保证交易的安全性。此外，加密算法还可以使用户在区块链网络上安全地进行交易，而无需担心信息被泄露或篡改。

共识机制是指在区块链网络中，节点之间共同确认交易的过程。这个过程需要网络中的所有节点进行投票，以确认交易是否有效。如果超过半数的节点都同意这笔交易，那么这笔交易就被认定为有效，并被写入到区块链中。这种机制使得区块链网络中的交易更加安全，避免了单点故障的风险。

分布式账本是一种数据结构，它能够记录所有的交易信息，并将其存储在分布式的网络中。这种数据结构不仅可以记录交易信息，而且还可以记录智能合约等信息，使得数据的安全性和可追溯性得到极大的提高。此外，分布式账本还可以记录账户之间的信息，使得交易更加便捷。

以上就是区块链诞生的三个关键技术：加密算法、共识机制和分布式账本。它们的出现，使得区块链技术得以发展，为用户提供了更安全、更可靠的交易环境，从而推动了整个区块链行业的发展。

❶ What is blockchain, how was it born, and what are the types of blockchain?

If you want to understand blockchain, you must first understand the basic structure of the program. Everything we see on the Internet is constructed through computer language. There are many kinds of computer languages, but the most basic characters that make up the language are codes, and blockchain technology is a way of applying codes, which is different from traditional centralization. The difference between the models is that the blockchain has the characteristics of immutability, privacy, security, and consensus.

There are many application scenarios for blockchain. The most successful case so far is Bitcoin, followed by electronic invoices, cross-border payments, etc. Based on the interoperability of data, it is impossible to With characteristics such as tampering, it can also be used to save some important data. As long as this data uses blockchain technology as the underlying technology, it can never be destroyed and will be saved forever. No person or institution has the ability to modify or delete it. In addition, there are certain intersections between blockchain payment and education, medical care, credit reporting, automobiles, transportation and other fields. It is a technology, not a certain product, so there is only one type of it, but with the application As the scene changes, its role is also different. It can be integrated with existing scenes in almost any field and then derive other applications.

❷ What are the reasons for the emergence and rise of blockchain

(1) Technical level. Distributed computing has affected technology developers since 2007, so the emergence of distributed autonomous Bitcoin in the field of virtual currency is also a normal phenomenon.

(2) Hardware level. The popularity of PC servers and the exponential growth of computing power.

(3) Commercial level. The three major characteristics of blockchain, which are decentralization, trustlessness, and extremely difficult to forge, exactly solve the need to reduce the trust cost of both parties and speed up transactions in financial fields such as stock trading and bank settlement.

(4) Political level. Blockchain can reduce transaction costs to a certain extent, but the anonymous and untraceable nature of blockchain brings huge political risks.

[Blockchain was proposed as the underlying technology of Bitcoin at the end of 2008]

I recommend you read this book ~ Blockchain is mentioned< /p>

❸ 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. B transfers 50,000 to A, then C adds 50,000 yuan to A’s name in the account book record, and subtracts 50,000 yuan to B’s name. 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 a decentralized and distributed structure of data storage, transmission and certification methods. It 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, the self-certification of data during data transmission is theoretically realized. In a far-reaching sense, this transcends the traditional and conventional information verification paradigm that relies on a center and reduces the cost of establishing global "credit." This point-to-point verification will produce a "basic protocol", a new form of distributed artificial intelligence, and will establish a new interface and shared interface for human brain intelligence and machine intelligence.

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 or her 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, there isBlockchain provides security, so you can send money around the world anytime and anywhere, eliminating a lot of 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. In recent months, financial giants have gradually begun to pay attention to Bitcoin's technology and used it 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 the 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 blockchain since its establishmentIn the research and development and innovation of technology and products, it has a number of core technologies and has achieved substantial innovations in many aspects, forming a number of core technological achievements, such as: mathematically provable distributed consensus technology, rapid large-scale ledger storage technology, multi-chain general ledger technology that supports the expansion of business forms, interconnection technology between heterogeneous blockchains, etc. 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 underlying 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 move from theoretical discussion to practical application.
"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 ( The exploration and attempt of brand-new technologies and rule systems such as Internet user identity verification, wealth confirmation, transaction records, notarization and verification, which have little connection with offline) and are fully applied in the online world (online), provide people with the opportunity to adapt to the Internet society. Development provides alternative paths and unlimited imagination.
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 highly valued by more and more people is because the development and widespread application of the Internet have enabled more and more economic exchanges and transaction activitiesMoving online, the online world (or online 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 makes the citizen identity information in the cross-border interconnected online world subject to the administrative jurisdiction of real society... >>

Question 5: The so-called "district" What is "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, and the number of electronic currencies.Signatures, etc.; the hash formed by the previous block is used to connect blocks to achieve the order of past transactions; random numbers are the core of transaction completion, and all miner nodes compete to calculate the answer to the random number and get the answer the fastest The node 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 The data fingerprint is used to verify the validity of its information and chain to the next database block.
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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 asset digitization and 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

Question 10: What is blockchain: This explanation of blockchain is more understandable. Blockchain (Blockchain) refers to the method of decentralization and trustlessness. A technical solution for collectively maintaining a reliable database.
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.

❹ What is the formation method of blocks in blockchain technology

Chongqing Jinwowo analysis believes that the formation method of blocks in blockchain technology is as follows:
1 -Record relevant information in local memory into the block body;
2-Generate a merkle tree of all relevant information in this block in the block body, and save the value of the merkle tree root in the block header ;
3- Use the SHA256 algorithm to generate a hash value from the block header data of the previous block and fill it in the parent hash value of the current block;
4- Put the current time Saved in the timestamp field;
5-The difficulty value field will be adjusted according to the average generation time of blocks in the previous period to cope with the changing overall calculation amount of the entire network. If the total calculation amount increases, then The system will increase the difficulty value of the math questions so that the expectedThe time to complete the next block is still within a certain time.

❺ What is the process of block formation in blockchain technology?

Jinwowo Network analyzes the block formation process in blockchain as follows:
1 -Record: Record the transaction information in local memory into the block body
2-Generate: Generate the Merkle tree of all transaction information in this block in the block body, and save the value of the Merkle tree root in In the block header
3-Fill in the parent hash value: Use the SHA256 algorithm to generate a hash value from the block header data of the previous block just generated and fill it in the parent hash value of the current block< br />4-Time preservation: Save the current time in the timestamp field
5-Difficulty coefficient: The difficulty value field will be adjusted according to the average generation time of blocks in the previous period to cope with the changing overall situation of the entire network The total amount of calculations. If the total amount of calculations increases, the system will increase the difficulty value of the math questions so that the expected time to complete the next block is still within a certain period of time.

❻ What is blockchain and how to introduce blockchain in a simple and easy-to-understand manner

Many people don’t know what blockchain is. Here is a detailed introduction to blockchain. Chain is a new technology that subverts the old model. Just like people tend to ignore the invisible but indispensable oxygen, people often ignore the most important thing in the market economy, which is trust. Without trust, no transaction can be established.

In addition, different races, nationalities, cultures, religious beliefs, etc. will form a trust gap. Due to the lack of mutual understanding and necessary trust between strangers, it is difficult for transactions to occur. The market economy emerged in large numbers among strangers. The emergence and development of the market economy lies in the birth of a new mechanism, which solves the problem of trust between strangers.

The concept of blockchain was first proposed in a paper written by Bitcoin founder Satoshi Nakamoto in 2008. Blockchain can be understood as a kind of public accounting. Technical solution: All data will be open and transparent, without the need for a central server as a trust intermediary, thus ensuring the authenticity, immutability and credibility of information on a technical level. The immutability of data is very important.

Because the blockchain has the technical characteristics of large-scale expansion, open and transparent data, and because the data of each client is consistent, even if some clients are destroyed, it will not affect the reliability of data security. In particular, it can effectively solve the problem of trust between strangers, so this technology can be extended to all fields that can be digitized, such as digital currency, payment settlement, digital bills, proof of rights, credit information, government services, medical records, etc. If blockchain technology develops, it will be closely related to everyone in the future.

❼ What is blockchain? Explanation of blockchain technology

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain) is an important concept of Bitcoin, which is essentially a decentralized database.

At the same time, as the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each data block contains a batch of Bitcoin network transaction information, which is used to verify its Validity of information (anti-counterfeiting) and generation of the next block.

The blockchain is a public data list, and each record in it is called a block. These blocks are connected together like a chain to form a blockchain. Just like an idiom solitaire, there must be some connection between adjacent words to form a word chain. The same is true for blockchain, but the connection between blocks is much more complex.

(7) Extended reading on how blockchain is formed

Blockchain technology innovation does not mean speculating on virtual currencies, and the use of blocks should be avoided Chains issue virtual currencies and speculate on air coins. At the same time, we should also note that blockchain is still in its early development stage and needs further development and improvement in terms of security, standards, supervision, etc.

The general direction is not wrong, but it is necessary to avoid rushing in and duplicating construction, and to open up the imagination space of the blockchain in orderly competition. China has a good foundation in the field of blockchain. Some large Internet companies have already laid out their plans. The talent pool is relatively sufficient and the application scenarios are rich. It is fully qualified to achieve a leading position in this new track.

From a larger perspective, human beings can develop civilization because they have achieved effective cooperation among large-scale groups of people. The "invisible hand" explained by Adam Smith also realizes the division of labor and cooperation in human society through the market mechanism.

From this perspective, blockchain has greatly expanded the breadth and depth of human trust and collaboration. Perhaps, blockchain is not only the next generation of Internet technology, but also the next generation of cooperation mechanisms and organizational forms.

❽ How the blockchain was formed

The origin of the blockchain comes from Satoshi Nakamoto in 2008. Based on this ideological concept, the first product "Bitcoin" was born. The origins of blockchain technology are often attributed solely to the actions of a few mysterious geniuses working under the pseudonym Satoshi Nakamoto. This view of history often makes the technology seem almost magical and difficult to understand. It's even more fundamental when one understands the actual history behind the development of these systems. In this section, I will outline the most important topics from the decades of research on consensus algorithms and distributed systems that led to the creation of blockchains.

❾ How the blocks of the blockchain are generated

The first step: Both parties in the blockchain system initiate a transaction, for example, A wants to transfer a sum of money to B;< br />The second step: The participating nodes in the system compete for the accounting rights, and the system selects the most representative accounting block to generate the block;
The third step: The block is broadcast to all participants in the network who;
The fourth step: participants agree that the transaction is valid;
The fifth step: the block is added to the chain, thisThe chain provides permanent and transparent transaction records;
Step 6: Transfer funds from A to B