区块链能绕过网络监管吗为什么,区块链能绕过网络监管吗知乎

区块链能绕过网络监管是一个热门话题，涉及到技术、经济和政治等多个领域。本文将介绍三个关键词：区块链技术、去中心化和数据保护，来解答这个问题。

区块链技术是一种分布式数据库技术，它使用密码学算法将数据分散存储在网络中的节点上，并使用共识机制确保数据的完整性和一致性。由于数据分散存储，区块链技术可以有效防止数据被篡改，从而避免网络监管的影响。

去中心化是区块链技术的一个基本特征，它指的是没有中心化的组织结构，也没有特定的控制者。这种去中心化的结构使得区块链技术不受任何组织或政府的控制，可以有效绕过网络监管。

数据保护是区块链技术的另一个重要特征，它可以保护用户的隐私，并保护网络上的数据安全。区块链技术可以使用加密算法来保护用户的隐私，并使用共识机制来确保数据的完整性和一致性，从而有效绕过网络监管。

综上所述，区块链技术可以有效绕过网络监管，因为它具有去中心化的结构、数据分散存储和数据保护等特性。因此，区块链技术可以有效保护用户的隐私，并保护网络上的数据安全。

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❶ How important is blockchain?

With its exquisite design concepts and thinking, blockchain can promote the reconstruction of rule systems in economic and social related fields and change people. , collaborative relationships and benefit distribution mechanisms between people and organizations, organizations and organizations; at the same time, blockchain technology can effectively solve the "double spend problem", that is, to prevent the same digital asset from being reused due to improper operations.

This provides a solution to the problem of digital asset rights confirmation and transaction circulation, which can break through the problems such as digital asset rights confirmation and double spending that restrict digital development, and build Forming new production relations that adapt to the development of the digital economy has become the most important value of blockchain technology.

01 Reduce transaction intermediate links and promote cost reduction and efficiency improvement

There are a large number of rent-seeking intermediary organizations in various fields of economic and social life. Some of these organizations do not create real value, but only seek profits through the monopoly of business information or data. , artificially increasing unnecessary transaction links and costs.

Through the innovative application of blockchain, a self-organizing mechanism for economic behavior based on technology can be built to replace the business role of some intermediaries, which can greatly improve data acquisition. , consensus formation, accounting and reconciliation, and value transfer efficiency, further open up the upstream and downstream industrial chains, significantly reduce unnecessary intermediary organizations and intermediate links, improve the efficiency of effective docking of supply and demand in various industries, reduce the burden on the public and commercial entities, and promote The real economy reduces costs and increases efficiency.

02 Help confirm the rights of digital assets and stimulate innovation vitality

In the era of digital economy , data resources are becoming more and more important. In 2019, my country has officially regarded data as one of the seven production factors as important as labor, capital, land, knowledge, technology, and management, and has promoted the establishment of a data factor market system.

However, due to the difficulty in confirming data rights, tracing back, and dividing interests, data cannot yet achieve efficient market-oriented allocation and orderly circulation, seriously restricting the development of the digital economy. develop.

Distributed, non-tamperable, traceable, With features such as transparency, multi-party maintenance, and cross-verification, data ownership can be effectively defined, data circulation can be tracked and supervised, and data revenue can be reasonably shared, removing obstacles to the efficient market-oriented allocation of data production factors and other digital assets. It is expected thatReversing the current trend of increasing centralization of data ownership, use and benefit distribution, promote the entire society and digital economy to develop in a more trustworthy, shared, and balanced direction, and further release the innovation vitality of the digital economy.

03 Shortening the distance of trust and expanding the space for collaboration

Modern human lifestyle The changes and progress are all directly related to the development of science and technology. Scientific and technological revolutions always dialectically expand the territory of human activities while shortening the distance between them. Every major technological change is always accompanied by the collapse of "distance" in some sense, thus bringing convenience to people.

For example, the invention of transportation has expanded the radius of human activities and shortened the geographical distance between people; the invention of communication tools has expanded the radius of human "conversation" The physical distance has been shortened; the invention of the Internet has expanded the radius of human access to information and shortened the distance of information; the invention of artificial intelligence has expanded the radius of cognition and shortened the distance of cognition of the world.

Blockchain shortens the distance of trust

Today, blockchain has brought us a new radius expansion. Blockchain can form a trust mechanism based on cryptographic algorithms without relying on authoritative centers and market environments, allowing strangers who are thousands of miles apart, have never met or even never met to establish a trust relationship, expanding the radius of human trust, thus making strangers Cooperation becomes possible.

Especially in some regions and fields with imperfect market mechanisms and lack of credit systems, the value of blockchain technology is even more precious. Blockchain technology enables strangers to establish production relationships based on technical constraints, making it possible to carry out business cooperation in unfamiliar environments, and is expected to inspire a series of new business models.

04 Driving the Internet revolution and accelerating value delivery

The first 20 years of the 21st century , human society has experienced the comprehensive baptism and reconstruction of the Internet. "Internet +" has brought about earth-shaking changes in related industries and fields. People's lives have become more convenient because of the Internet, economic activities have become more active because of the Internet, and society has become more fair and open because of the Internet. .

However, the Internet mainly solves the problem of dissemination of information. It is difficult to judge the authenticity of information content, and there are still many constraints and obstacles to the transfer of digital assets. While the Internet brings great convenience, it is also filled with more and more false information, and has even become a new type of bullying.As a hotbed of fraud, while people are becoming more and more dependent on the Internet, they are also increasingly wary of the Internet.

Based on blockchain technology, the next generation of reliable technology based on technical constraints can be built. Trusting the Internet and solving the trust problem of strangers on the traditional Internet will allow digital assets to circulate efficiently on the Internet. Based on blockchain technology, digital assets and intellectual property rights on the Internet can be effectively protected. Asset transactions between people will be as convenient as sending emails. People will put down their guard against the highly dependent Internet because of the innovation of blockchain technology. The Internet will give birth to more valuable applications.

05 Strengthen the constraints of the integrity system and purify the market environment

Blockchain is a Trust the machine. By promoting the deep integration of blockchain and the real economy, a market environment that is convenient, efficient, fair, competitive, stable and transparent can be created. The technical characteristics of blockchain technology that cannot be tampered with and are traceable can play a very important role in the innovation of trust mechanisms in regions and fields with imperfect market mechanisms and incomplete credit systems.

Under the traditional model, market supervision requires a heavy workload and is difficult to implement. Due to insufficient administrative law enforcement resources and regulatory means, it is widely hated by the public. The phenomena of laobao, counterfeit products and fraudulent behaviors are repeated and difficult to eradicate.

Blockchain technology can be formed without the need for intermediaries and laws and regulations. The conditional self-organization and self-supervision mechanism, and the non-tampering, non-repudiation, and non-manipulability of the distributed ledger actually play a role in technical supervision of various economic behaviors.

This will help solve problems such as difficulty in loan financing for small and medium-sized enterprises and difficulties in bank risk control; by recording the entire product production and transaction circulation process, it can significantly reduce the risk of counterfeiting, Various market frauds such as shoddy goods are used to solve problems such as difficulty in market supervision.

[This article comes from the "Popular Reader on Frontier Hot Technologies in the Information Field" published by People's Publishing House]

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❷ Does blockchain have compliance risks?

Blockchain technology itself does not violate any laws and regulations, so there are no compliance risks. However, in the actual application process, enterprises or individuals using blockchain technology need to comply with relevant legal and regulatory requirements.
For example, in China, the use of blockchain technology to conduct financial transactions or raise funds needs to comply withRelevant legal and regulatory policies. In addition, if users' sensitive personal information is retained on the blockchain, it must also comply with relevant laws and regulations such as data protection.
Therefore, enterprises and individuals who adopt blockchain technology in field applications not only need to understand and comply with existing legal operations and regulations, but also need to pay close attention to the development trends of technology and regulations and make timely decisions. Adjustments and changes accordingly. Only by operating and conducting business in compliance with regulations can enterprises develop better and gain lasting competitive advantages.

❸ The upgrade of blockchain technology enables blockchain applications to be regulated

The upgrade of blockchain technology enables blockchain applications to be regulated
Internet In the modern era, computers have proposed many trusted computing methods very early on, that is, any blockchain technology node adopts a trusted computing module. Therefore, trusted computing can make it easier to upgrade and iterate technology in distributed networks.
In terms of the real-name system of blockchain technology, there is a blockchain technology laboratory in the United States, and they have proposed many technical solutions for real-name systems. For example, the current blockchain technology is point-to-point. In many countries, such as South Korea, each person has an electronic certificate, and real-name electronic certificates must be used for signatures during transactions. Of course, there are simpler solutions. We can store the IP address of the entire device as part of the transaction on the blockchain application.
In this way, the entire blockchain technology transaction can realize the real-name system of the technology. So this is an optional real-name system. We can build a real-name blockchain application network or an anonymous blockchain application network.
Super Key is also a major advancement in the current development of blockchain technology. Because it is a distributed network, how do we supervise it and how do we control it? In cryptography, we call it the so-called multi-signature.
We (yunbaokeji) design a different blockchain application network. If it is a blockchain application network used by a bank, we can design a super key. The keys of all nodes must be together with the super key to generate a wallet.
Then this super key must be in the hands of regulators or certain institutions, who can have limited control over blockchain applications. For example, currently the data on blockchain applications cannot be deleted, so the super key actually allows powerful organizations to modify the distributed network.
So what kind of technology is blockchain:
(1) Distributed decentralization,
(2) No need to trust the system,
(3) Unable to Tampering and encryption security. I know these words individually, but what do they mean together?
1. Distributed decentralization. This is talked about all over the Internet. Needless to say, in short, there is no need for a central server. Everyone’s data is obtained from this server., but put the data on N devices connected to the Internet, and everyone can download and store it.
2. No need to trust the system. Do you trust banks? Because the bank is recognized and established by the state, the blockchain implements a trust method that does not require a third party. N devices on the Internet are used to store data, and everyone can verify the data. As long as more than half of the people think you are right, you are right. No one person or organization can modify more than half of the content on the Internet. If you don't believe in others, you should always believe in your own verification results. If you don't believe in yourself, then congratulations, you are a great philosopher.
3. Non-tampering and encryption security
Blockchain uses a series of technologies, such as SHA256 and RIPEMD160 and other cryptographic algorithms to ensure non-tampering and encryption security. For example, 0101100011101110 represents a Characters, the algorithm requires shifting 4 bits to the left, supplementing with 0, throwing away the 4 bits on the left, and adding 4 0s on the right to get the result. How to deduce the original value based on the result? Of course this is just a simple example.

❹ What exactly is blockchain

Let’s talk about some basic concepts first.

The network said that blockchain is a new usage model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanisms, and encryption algorithms. It is essentially a decentralized database, and as the underlying technology of Bitcoin, it is a series of data blocks generated by cryptography.

We try to translate "what is blockchain" into "human language".

The definition refers to the "decentralized database" nature of blockchain3354. This is very different from the traditional "centralized database" in storage, update and operation.

A centralized database can be thought of as having this shape:

For example, if I want to use Alipay to pay a Taobao seller, all data requests from when I make money to when he receives the money will be centrally processed by Alipay. The advantage of this data structure is that as long as Alipay is responsible for the efficient and safe operation of the system, others can unconditionally believe it without worrying; the disadvantage is that if there is a problem with Alipay, such as being hacked, the server being burned, a traitor appearing, and the company running away (Of course, the possibility of the above is extremely low), the balance details and other information in our Alipay will be confused.

Then some people think that this kind of low-probability event can use any technical means to avoid individual risks, and not only hand over the data to a centralized organization. For example, everyone can store and process data.

The database structure may look like this:

This picture is a schematic structural diagram of a "distributed database". Each point is a server, they all have equal rights to record and calculate data, and information is spread point-to-point. At first glance, it seems that it can indeed resist the risk caused by the crash of a certain node, but it is also very confusing and inefficient intuitively. Who will handle my information, and who has the final say on the outcome?

At this time, the "consensus mechanism" in the definition of blockchain comes into play. The consensus mechanism mainly "stipulates" the following things: when a data request is received, who will handle it?processing (what qualifications are required); who will verify the results (to see if he has handled it well); how to prevent processors and inspectors from colluding with each other, etc.

Some people may like to be questioned when a "rule" is made. In order to form a stronger consensus, in addition to making the rules more reasonable, they must also be more attractive so that people are interested and motivated to participate in data processing. This involves the incentive mechanism of the public chain. We will start again later when we discuss the classification of blockchain and the role of digital currencies.

When we hand over a transaction to a distributed network, there is also a "psychological threshold": there are so many nodes that can process information, and I don't know any of them (unlike Alipay, if it hurts me, I can go and file a lawsuit against it). They all have my data, why should I trust them?

At this time, encryption algorithm (the last descriptive word in the definition of blockchain) comes on stage.

In the blockchain network, the data requests we send will be encrypted according to cryptographic principles into a string of characters that the recipient cannot understand at all. Behind this encryption method is the support of a hash algorithm.

Hash algorithms can quickly convert any type of data into hash values. This change is one-way irreversible, deterministic, random, and anti-collision. Because of these characteristics, the person handling my data request could record the information for me, but they had no idea who I was or what I was doing.

So far, the working principle of the decentralized network has been introduced. But we seem to have overlooked one detail. The previous diagram is a net. Where are the pulleys and chains? Why do we call it blockchain?

To understand this matter, we need to clarify a few knowledge points first:

The previous picture is actually a "macro" database perspective, showing the basic rules and processes of the blockchain system for processing information. . And specifically at the "micro" data log level, we will find that the ledger is packaged, compressed, stored in blocks, and strung together in chronological order to form a "chain structure", like this:

Figure Each ring in can be regarded as a building block, and many links are linked together to form a blockchain. Blocks store data, unlike ordinary data storage: on a blockchain, the data in a later block contains the data in the previous block.

In order to academically explain the fields of each part of the data in the block, we tried to use a book metaphor to describe what a blockchain data structure is.

Usually, when we read a book, we read the first page, then the second and third pages. The spine is a physical existence that fixes the order of each page. Even if the book is scattered, the order of each numbered page can be determined.

Inside the blockchain, each block is marked with a page number, the second page contains the content of the first page, the third page contains the content of the first and second pages. The tenth page contains the previous Nine pages of content.

It is such a nested chain that can be traced back to the original data.

This brings up an important attribute of blockchain: traceability.

When the data in the blockchain needs to be updated, new ones are generated in sequence.block, the "consensus algorithm" comes into play again. This algorithm stipulates that a new block can only be formed if it is recognized by more than 51% of the nodes in the entire network. To put it bluntly, it is a matter of voting, and it can be elected if more than half of the people agree. This makes the data on the blockchain difficult to tamper with. If I were to force a change, there would be too many people to bribe and the cost would be too high to be worth it.

This is what people often call the "non-tamperable" feature of blockchain.

Another reason why blockchain gives people a sense of trust is because of "smart contracts."

Smart contracts are commitment agreements defined and automatically executed by computer programs. It is a set of transaction rules executed by code, similar to the current automatic repayment function of credit cards. If you turn on this function, you don’t have to worry about anything. The bank will automatically deduct the money you owe when it is due.

When your friend borrows money from you but doesn't remember to pay it back, or makes excuses not to pay it back, smart contracts can prevent breach of contract. Once the terms in the contract are triggered, such as when it is time to pay back the money, or there is a limit in his account, the code will automatically execute, and the money he owes you will be automatically transferred back whether he wants it or not.

Let’s briefly summarize. Blockchain technology is mainly decentralized, difficult to tamper with, and traceable, which represents more security and trustlessness. But it also brings new problems: redundancy and inefficiency, which requires many nodes to agree with the rules and actively participate.

This concludes the "drying" section. Next, let’s talk about unofficial history and the official history of blockchain.

A new technology is often used to serve a certain task.

Or goals. So where was blockchain first used, and who came up with it first?

Let's go back to 2008.

On September 21, Wall Street investment banks collapsed one after another, and the Federal Reserve announced that it would convert the only two remaining investment banks (Goldman Sachs Group and Morgan Stanley) into commercial banks; it hoped to survive the financial crisis by absorbing savings. On October 3, the Bush administration signed a $700 billion financial rescue package.

Twenty-eight days later, on November 1, 2008, a new post appeared in a cryptography mailing group: "I am developing a new electronic currency system that is completely peer-to-peer and does not require a third party. Three-party trust institution." The text of the post is a paper titled "Bitcoin: A Peer-to-Peer Electronic Cash System", signed by Satoshi Nakamoto.

The paper explains the design of this peer-to-peer electronic cash system with a more rigorous logic. It first discusses the problem that financial institutions are subject to "trust based" (based on credit), and then explains step by step how to achieve "no third-party agency" , and cleverly solved the technical problems left by the predecessors.

Two months later, Satoshi Nakamoto released the first version of the open source Bitcoin client and mined 50 Bitcoins for the first time. The block that generated the first batch of Bitcoins is called the "Genesis block". The genesis block was compiled into block 0 and was not uploaded to the chain.. It took Satoshi Nakamoto 6 days to mine this block. This also sparked discussion in the bitcointalk forum. Bitcoin "believers" thought of the Bible, "God created the heavens and the earth in six days, and then rested on the seventh day."

Although concepts such as decentralized, token, and economy did not appear in the paper, Satoshi Nakamoto explained in detail the role of blocks and chains in the network. working principle. So, there is Block Chain.

This paper later became the "Bible" of the "Bit Cult", technology became the cornerstone of faith, and developer documentation became the "Code of Hammurabi".

After that, Bitcoin realized the first real-life payment by exchanging pizza, WikiLeaks, whose account was blocked by the US government, miraculously survived by relying on Bitcoin, Satoshi Nakamoto's "decentralization" and retirement, and the appearance of the real and the fake A series of legends such as and refutation of rumors, combined with the expectations, imagination and speculation of later generations, became "Bible stories".

There are also people who are not satisfied with the world described in the "Old Testament" and start new sects, write the doctrines into white papers, and tell the story of their faith in the ten years after Bitcoin. Just like the writing of the 66 books of the Bible spanned 1,500 years, and after 2,000 years of interpretation, Christianity has divided into 33,000 branches.

CoinMarketCap shows that there are more than 4,900 types of digital currencies, and the overall digital currency market size is nearly 140 million yuan. Bitcoin still leads the entire digital currency market with a market share of 66%, and the recent price has been hovering around US$7,200 per coin.

So many currencies have different functions and are divided into different categories: digital currencies represented by Bitcoin are positioned as "digital gold" and have certain value storage and hedging characteristics; Ethereum The digital currency represented by USDT and Libra has become the "operational fuel" in its network system; the stable currency represented by USDT and Libra has good payment properties due to its low volatility; the digital currency issued by the central bank represented by DCEP will definitely To a certain extent, it replaces M0, allowing commercial institutions and ordinary people to receive and pay without delay when they are out of cash and disconnected from the Internet.

It can be seen that after 10 years of development of blockchain technology, the first and largest application is digital currency.

Digital currency has also become an attractive reward for participants to maintain the public chain.

So besides digital currency, where else can blockchain technology be used?

Let us recall what the essence of blockchain is—a decentralized database, and its corresponding characteristics: traceability, publicity, anonymity, and tamper-proofing. In theory, you can try to use blockchain to transform traditional scenarios that use centralized databases to see if they are suitable.

Next, let’s talk about several industries and scenarios where blockchain has been successfully implemented:

Blockchain can prove the existence of a certain file or digital content at a specific time through hash timestamps, providing judicial authentication, Identity proof, property rights protection, anti-counterfeitingTraceability provides perfect solutions

In the field of anti-counterfeiting and traceability, blockchain technology can be widely used in various fields such as food and medicine, agricultural products, alcohol, and luxury goods through supply chain tracking.

Give two examples.

Blockchain can allow government data to be run, greatly streamlining service processes

The distributed technology of blockchain can allow government departments to be centralized on one chain, and all service processes are delivered to smart contracts, and the workers only need to be in one department Through identity authentication and electronic signature, smart contracts can be automatically processed and transferred, and all subsequent approvals and signatures can be completed in sequence.

Blockchain invoices are the earliest use of blockchain technology in China. The tax department launched the "Tax Chain" platform for blockchain electronic invoices. The tax department, the issuer, and the payee join the "Tax Chain" network through unique digital identities, truly realizing "instant invoicing for transactions" and "instant reimbursement after invoicing" - in seconds Level invoicing and minute-level reimbursement accounting greatly reduce tax collection and management costs, and effectively solve problems such as data tampering, over-reporting of one ticket, and tax evasion.

Poverty alleviation is another practical application of blockchain technology. Utilize the characteristics of openness, transparency, traceability, and non-tampering of blockchain technology to achieve transparent use, precise investment, and efficient management of poverty alleviation funds.

Give two examples as well.

The eID network identity operation agency guided by the Third Research Institute of the Ministry of Public Security is jointly developing a "digital identity chain" with Gongyilian, which will be issued to Chinese citizens based on the citizen's identity number as the root and cryptographic algorithm. Since it was put into operation, the eID digital identity system has served the full life cycle management of 100 million eIDs, effectively alleviating the problems of personal identity information being fraudulently used, abused and privacy leaked.

Odaily Planet Daily compiled 5 identity chain projects registered with the Cyberspace Administration of China

Blockchain technology naturally has financial attributes

In terms of payment and settlement, under the blockchain distributed ledger system, there are many markets Participants jointly maintain and synchronize a "general ledger" in real time. In just a few minutes, they can complete payment, clearing, and settlement tasks that currently take two or three days to complete, reducing the complexity and cost of cross-bank and cross-border transactions. At the same time, the underlying encryption technology of the blockchain ensures that participants cannot tamper with the ledger, ensuring that transaction records are transparent and safe. Regulators can easily track on-chain transactions and quickly locate high-risk capital flows.

In terms of securities issuance transactions, the traditional stock issuance process is long, costly and complicated. Blockchain technology can weaken the role of underwriting institutions and help all parties establish a fast and accurate information exchange and sharing channel. The issuer can handle the issuance on its own through smart contracts. , regulatory authorities conduct unified review and verification, and investors can also bypass intermediaries for direct operations.

In terms of digital bills and supply chain finance, blockchain technology can effectively solve the financing difficulties of small and medium-sized enterprises. It is difficult for current supply chain finance to benefit small and medium-sized enterprises in the upper reaches of the industrial chain, because they often do not have direct trade relations with core enterprises, and it is difficult for financial institutions to evaluate their credit qualifications. Based on blockchain technology, we can establish a consortium chain network covering core enterprises, upstream and downstream suppliers, financial institutions, etc. Core enterprisesThe industry issues accounts receivable certificates to its suppliers. The bills can be transferred between suppliers after being digitized on the chain. Each level of supplier can use the digital bill certificate to achieve the corresponding amount of financing.

Give me an example.

The China Enterprise Cloud Chain, jointly launched by ICBC, Postal Savings Bank of China, 11 central enterprises, etc., has covered 48,000 companies since its establishment in 2017, with the amount of rights confirmed on the chain reaching 100 billion yuan, and factoring financing of 57 billion yuan. , cumulative transactions reached 300 billion yuan. After receiving the loan application, financial institutions can verify the authenticity of the contract on the chain and whether the contract has been verified multiple times (multiple loans); the smart contract automatically clears and settles, reducing costs and increasing efficiency; at the same time, the accounts payable of core enterprises can have The corresponding vouchers will be split by the first-level suppliers and handed over to the second- and third-level suppliers in the chain to help them with financing; core enterprises can also use this to understand whether the entire chain is operating normally and avoid emergencies. Redemption pressure.

Blockchain technology will greatly optimize the existing use of big data and play a huge role in data circulation and sharing

The aforementioned areas are areas that we are relatively familiar with. As more new technologies develop, blockchain may be able to be combined with them and play a role in unexpected cross-fields and new scenarios that are currently unforeseen.

In the future, the Internet, artificial intelligence, and the Internet of Things will generate massive amounts of data. The existing centralized data storage (computing model) will face huge challenges. Edge storage (computing) based on blockchain technology is expected to become a future solution. Furthermore, the non-tampering and traceability mechanism of blockchain ensures the authenticity and high quality of data, which becomes the basis for the use of all data such as big data, deep learning, and artificial intelligence.

Finally, blockchain can realize multi-party collaborative data calculations while protecting data privacy, and is expected to solve the problems of "data monopoly" and "data islands" and realize the value of data circulation.

In response to the current blockchain development stage, in order to meet the blockchain development and use needs of general business users, many traditional cloud service providers have begun to deploy their own BaaS ("Blockchain as a Service") solutions. The combination of blockchain and cloud computing will effectively reduce enterprise blockchain deployment costs and promote the implementation of blockchain usage scenarios. In the future, blockchain technology will also play an important role in many fields such as charity, insurance, energy, logistics, and the Internet of Things.

During this trial process from traditional technology to blockchain, we found that when certain scenarios have stronger demands for traceability, tamper-proofing, and decentralization, they also have problems with the weaknesses of blockchain (such as performance). , the requirements are not high, and this field is quite suitable for combining blockchain.

At the same time, in the process of blockchain evolution, it has also developed from a highly decentralized public chain accessible to everyone to a consortium chain with different permissions and maintained by multiple centers. Balances the advantages and disadvantages of the two systems.

Typical examples of alliance chains include: FISCO BCOS jointly developed by WeBank and the Golden Alliance Open Source Working Group, Fabric, a major contribution from IBM, and Ant Alliance Chain led by Ant Blockchain, etc.

These trustless systems represent a moreSecure data authentication and storage mechanism, in which data is effectively authenticated and protected. Businesses or individuals can exchange or enter into contracts digitally, where these contracts are embedded in code and stored in transparent, shared databases where they cannot be deleted, tampered with, or revised.

It is boldly predicted that in the future, contracts, audits, tasks, and payments will all be digitized with unique and secure signatures. Digital signatures will be permanently identified, authenticated, legalized, and stored, and cannot be tampered with. There is no need for an intermediary to guarantee each of your transactions. You can conduct transactions without knowing the basic information of the other party. While improving information security, it effectively reduces transaction costs and improves transaction efficiency.

Generally speaking, there has been a lot of progress in the implementation of blockchain compared to two years ago.

Many improvements are at the bottom of the system, and users cannot directly see that blockchain is used, but they have actually benefited from it; some applications are still in pilot mode, and users have not yet been able to experience it. In the future, blockchain is expected to be used on a large scale and become one of the Internet infrastructure.

I hope that after reading this, you have a general understanding of what blockchain is and what blockchain can do.

Related Q&A: What is blockchain

Blockchain is actually equivalent to a disintermediated database, which is composed of a series of data blocks. Each of its data blocks contains information about a Bitcoin network transaction, which is used to verify the validity of the information 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 cryptographically guaranteed to be non-tamperable and non-forgeable. distributed ledger.

In a broad sense, blockchain is actually a distributed infrastructure and computing method, which is used to ensure the security of data transmission and access.

Blockchain infrastructure:

Blockchain is composed of six infrastructures: data layer, network layer, consensus layer, incentive layer, contract layer and usage layer.

❺ Does blockchain have compliance risks?

Yes, the application of blockchain technology may involve compliance risks.
First of all, in some countries and regions, governments or regulatory authorities may take different stances on digital currencies and other assets based on blockchain technology, and there will be a certain degree of legal, compliance and policy risks. . For example, some countries restrict or prohibit the use of digital currencies and other Bitcoin or blockchain derivatives. Therefore, when choosing the scope of application of blockchain technology, the local legal and regulatory environment needs to be considered.
Secondly, there are trust issues between participants in private chains or alliance chains, and there are also compliance risks in the construction of trust mechanisms. For example, in the financial field, banks or other financial institutions need to consider which trust model to use when using blockchain technology to comply with social ethics and potential legal requirements. For money-related transactions, legal requirements such as anti-money laundering and counter-terrorism must also be met.
In addition, since the districtDue to the immutable and public nature of blockchain technology, it may inadvertently leak personal privacy, business secrets and other confidential information, causing privacy data leaks and security risks.
Therefore, enterprises and technology companies should carefully assess potential compliance risks and formulate appropriate compliance security measures, such as complying with legal and regulatory requirements, establishing a sound privacy protection mechanism, and strengthening privacy data protection in multiple dimensions. To ensure compliance and data security of blockchain technology applications.

❻ Is blockchain safe?

Hi, everyone, I am your Q&A assistant—Zi Xiaochen. Recently, blockchain resistance has been widely concerned and discussed. But there are many people who don’t know much about its safety. So today we will talk about the security issues of blockchain.
First of all, would you like to hear an easy-to-understand metaphor? A friend of mine joked: "The blockchain is like a password lock. Without the password, no one can open it." Although this is simple and interesting, it makes a lot of sense. Since the blockchain uses distributed ledger technology, data is stored in a huge network, and the transmission between each node uses asymmetric encryption, the blockchain has extremely high security, and third-party attacks are very vulnerable. difficult.
Secondly, of course there are some security issues that need attention. For example, hacker attack methods such as "51% attack" can pose a threat to the blockchain. In addition, there are also security risks in virtual currency trading venues, such as Bitcoin exchanges, and you need to pay attention to precautions. Therefore, when choosing a blockchain platform or participating in virtual currency transactions, you need to know more and consider carefully to avoid losses.
In short, blockchain is an open technology, which has huge advantages in ensuring data security and preventing tampering. But we also need to be alert to potential security risks and choose reliable platforms and exchanges to participate in cryptocurrency investments.
I hope my answer can help you better understand the blockchain and its security issues. If you have any questions or want to share your experience, please feel free to message me privately! Finally, don’t forget to like, comment and forward, follow my articles, more content is waiting for you!

❼ Is blockchain digital currency legal?

Blockchain digital currency is illegal in China. As early as September 2017, multiple official departments such as the central bank and the China Banking Regulatory Commission issued documents prohibiting the circulation and trading of digital currencies in China. Therefore, digital currencies are illegal in China.

Blockchain technology is recognized by the country, but because my country’s blockchain digital currency transactions do not have a complete regulatory mechanism, the country will ban digital currency transactions in the short term. to protect the legitimate rights and interests of the general public. In fact, the country is certain of the benefits of blockchain, but the emergence of blockchain has given criminals an opportunity to take advantage of it. Since most people don’t understand blockchain, they “give” their funds to the criminals after being coaxed by them. It is precisely because of this that the country has stopped the development of blockchain digital currency transactions., mainly to protect the masses.

However, the Cyberspace Administration of China issued the "Blockchain Information Service Management Regulations" on January 10, 2019, and began to implement them on February 15, 2019. In the "Blockchain Information Service Management Regulations", the state clarified the management measures for blockchain information services to promote the healthy development of blockchain technology and related services. This shows that the country has already established sound blockchain management methods. It is believed that in the near future, blockchain digital currency will become a legal project in the country.