区块链具有匿名性吗,区块链的匿名性有什么局限性

近几年，随着区块链技术的发展，区块链具有匿名性这一话题也引起了越来越多的关注。本文将从区块链的匿名性、其局限性和匿名性的实现三个方面来探讨这一话题。

区块链的匿名性

区块链技术是一种分布式账本技术，它具有去中心化、不可篡改、可追溯和安全性等特点，同时它也具有匿名性，即参与者的身份信息只存储在区块链上，不会暴露给任何人，从而保护了参与者的隐私。

区块链的匿名性主要体现在三个方面：首先，参与者的身份信息不会被泄露，参与者可以使用匿名账号进行交易，从而保护了参与者的隐私；其次，区块链系统中的交易信息是匿名的，参与者可以使用匿名账号进行交易，从而避免了其他参与者的干扰；最后，区块链系统中的数据是不可篡改的，参与者可以安全地存储和传输数据，从而保护了参与者的数据安全。

区块链的局限性

尽管区块链的匿名性具有很强的安全性，但它也存在一定的局限性。首先，区块链系统的安全性受到硬件设备的限制，如果硬件设备出现故障，将会影响到整个系统的安全性；其次，区块链系统的参与者也存在局限性，如果参与者数量过多，将会影响到系统的效率；最后，区块链系统的安全性受到攻击者的限制，如果攻击者具有足够的计算能力，将会破坏整个系统的安全性。

匿名性的实现

为了实现区块链的匿名性，可以采用多种技术手段。首先，可以使用加密技术来保护参与者的身份信息，这样可以有效地保护参与者的隐私；其次，可以使用隐私保护技术来保护参与者的交易信息，这样可以有效地避免其他参与者的干扰；最后，可以使用数字签名技术来保护参与者的数据安全，这样可以有效地防止数据被篡改。

总之，区块链的匿名性具有很强的安全性，但也存在一定的局限性，需要采用多种技术手段来实现。只有通过不断的技术研究和实践，才能提高区块链的匿名性，从而让区块链技术更加安全可靠。

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『一』How to understand the anonymity feature in blockchain technology

The analysis of Jinwowo network is as follows: Since the exchange between nodes follows a fixed algorithm, Counterparties do not need to reveal their identity to gain trust from the other party, which is very helpful for the accumulation of credit.

『二』What are the application fields of blockchain?

What are the application fields of blockchain? Introduction to the Blockchain Application Industry
As we all know, blockchain is very popular now. It is a shared distributed database technology. Blockchain technology will have very good results in different industries with its remarkable characteristics. Development prospects, so what are the application areas of blockchain?
Blockchain Applications
1. Digital Currency: At present, the most extensive and successful application of blockchain technology is the digital currency represented by Bitcoin. Digital currency has developed rapidly in recent years. Due to the characteristics of decentralized credit and frequent transactions, it has a high transaction value and can maintain a relatively stable price through the development of hedging financial derivatives as a quasi-super-sovereign currency. Since the emergence of Bitcoin, hundreds of digital currencies have appeared one after another, and a relatively large industrial chain ecosystem has been formed around the generation, storage, and transactions of digital currencies. Taking Bitcoin as an example, participating institutions can be mainly divided into four categories: infrastructure, trading platforms, ICO financing services, and comprehensive blockchain services.
2. Financial application: Blockchain has inherent advantages in the financial field. On the Internet, this is determined by the genes of blockchain. From a subjective point of view, financial institutions are the most willing to explore blockchain applications and need new technologies to improve operational efficiency and reduce costs to cope with the current status of the entire global economy. Objectively speaking, the market space in the financial industry is huge, and a little progress can bring huge benefits. The financial industry is an industry with extremely high requirements for security and stability. If the application of blockchain in the financial field is verified, it will have a huge demonstration effect and be quickly promoted in other industries. In the financial field, in addition to digital currency applications, blockchain has gradually begun to be applied in cross-border payments, supply chain finance, insurance, digital bills, asset securitization, bank credit reporting and other fields.
(1) Insurance business: With the development of blockchain technology, personal health status, accident records and other information may be uploaded to the blockchain in the future, allowing insurance companies to be more timely and timely when customers apply for insurance. Accurately obtain risk information to reduce underwriting costs and improve efficiency. The shared and transparent characteristics of the blockchain reduce information asymmetry and the risk of adverse selection; while its historical traceability characteristics are conducive to reducing moral hazard, thereby reducing the difficulty and cost of insurance management.
(2) Asset securitization: The business pain point in this field lies in the fact that the authenticity of the underlying assets cannot be guaranteed; there are many participating entities, multiple operating links, low transaction transparency, and information asymmetry, making it difficult to control risks. The pain point of data lies in the inefficiency of the transfer between the various parties, and the clearing and reconciliation of funds between the trading systems of the parties.It often requires a lot of manpower and material resources, and there are multiple online and offline channels for asset repayment. It is impossible to monitor the true situation of the assets. There is also the issue of the trust of all parties in the transaction chain in the authenticity and accuracy of the underlying asset data after the asset package is formed.
(3) Digital tickets: The pain points in this field lie in three risk issues. Operational risk: Due to the centralization of the system, once there is a problem with the central server, the entire market will be paralyzed; market risk, according to statistics, in 2016, there were seven risk events involving hundreds of millions of dollars, involving multiple banks; moral hazard , there are incidents such as "one ticket selling more" and false commercial bills in the market. Blockchain's disintermediation, system stability, consensus mechanism, and non-tampering characteristics reduce operational risks, market risks, and moral risks in traditional centralized systems.
(4) Cross-border payment: The pain points in this field are long payment cycle, high fees and low transaction transparency. The third-party payment company is the center to complete the accounting, settlement and liquidation in the payment process, and the payment cycle is long. For example, the payment cycle for cross-border payments is more than three days, and the cost is high. The blockchain is deintermediated, the transactions are open, transparent and cannot be tampered with. There is no third-party payment institution to join, which shortens the payment cycle, reduces fees and increases transaction transparency.
(5) Credit information management: The pain points in this field are the lack of data sharing, information asymmetry between credit information agencies and users; formal market-oriented data collection channels are limited, and the battle for data sources consumes a lot of costs; data privacy protection issues are prominent , the traditional technical architecture is difficult to meet new requirements, etc. In the field of credit reporting, blockchain has the characteristics of decentralization, trustlessness, timestamps, asymmetric encryption and smart contracts. At the technical level, it ensures that limited and controllable credit can be achieved on the basis of effectively protecting data privacy. Data sharing and verification.
(6) Supply chain finance: The pain points in this field are the long financing cycle and high costs. Centered on the core enterprise system of the supply chain, it is difficult for third-party credit enhancement institutions to authenticate the authenticity of various relevant vouchers in the supply chain, resulting in long manual review times and high financing costs. The blockchain's deintermediation, consensus mechanism, and non-tampering characteristics eliminate the need for third-party credit enhancement agencies to verify the authenticity of various relevant certificates in the supply chain, reducing financing costs and shortening the financing cycle.
(7) Asset securitization: The business pain point in this field lies in the fact that the authenticity of the underlying assets cannot be guaranteed; there are many participating entities, multiple operating links, low transaction transparency, and information asymmetry, making it difficult to control risks. The pain point of data lies in the low efficiency of transfers between participants, the clearing and reconciliation of funds between parties’ trading systems often requires a lot of manpower and material resources, and there are multiple online and offline channels for asset repayment, making it impossible to monitor the true status of assets, and there are still assets After the package is formed, the trust of all parties in the transaction chain in the authenticity and accuracy of the underlying asset data is an issue. The deintermediation, consensus mechanism, and non-tampering characteristics of the blockchain increase the efficiency of data flow, reduce costs, monitor the true status of assets in real time, and ensure that all parties in the transaction chain are responsible for the underlying assets.trust issues.
3. Blockchain + Industry Application:
As the application of blockchain technology in the financial field continues to be verified, its technical advantages are gradually showing value in other industries. At present, blockchain application projects are gradually being implemented in fields such as medical and health, IP copyright, education, culture and entertainment, communications, charity, social management, sharing economy, and the Internet of Things, and "blockchain+" is becoming a reality.
(1) Blockchain + Medical: In the medical field, blockchain can use its anonymity, decentralization and other characteristics to protect patient privacy. Electronic health records (EHR), DNA wallets, drug anti-counterfeiting, etc. are all possible application areas of blockchain technology. IBM predicted in last year's report that 56% of medical institutions around the world will invest in blockchain technology by 2020.
(2) Blockchain + Internet of Things: The Internet of Things is a very broad concept. If communications, energy management, supply chain management, sharing economy, etc. are included, the Internet of Things application of blockchain technology will has become a very important application field.
(3) Blockchain + IP copyright & cultural entertainment: The Internet is developing better and better, and digital music, digital books, digital videos, digital games, etc. have gradually become mainstream. The rise of the knowledge economy has made intellectual property rights a core element of market competition. However, intellectual property infringement is serious in the current Internet ecosystem, and the copyright protection of digital assets has become a pain point in the industry. Blockchain features disintermediation, consensus mechanism, and non-tampering. Blockchain technology can effectively integrate all aspects of the cultural and entertainment value chain, accelerate circulation, and shorten the value creation cycle; at the same time, it can realize the value of digital content Transfer, and ensure that the transfer process is credible, auditable and transparent, effectively preventing piracy and other behaviors.
(4) Blockchain + Public Services & Education: In the fields of public services, education, charity and public welfare, issues such as file management, identity (qualification) certification, and public trust all exist objectively. The traditional method is to rely on A credible third party provides credit endorsement, but problems such as fraud and deficiencies still exist. Blockchain technology can ensure the integrity, permanence and unchangeability of all data, and thus can effectively solve the difficulties and pain points in these industries in terms of certificate storage, tracking, association, and backtracking.

『三』What are the application scenarios of blockchain

On Oracle’s website, ten types of industry application scenarios of blockchain are listed

Including finance, production, education, media, entertainment, government, retail commerce, health, medical care, supply chain, insurance, and public utilities. Isn’t it very noble? But what I want to say is these application scenarios. In the face of truly high-powered blockchain applications, these application scenarios can only hide in the corner and tremble.

Nowadays, the truly high-powered application scenario of blockchain is Ponzi application, commonly known as "Ponzi scheme". It is a smart contract type Qianbao, a blockchain game with rolling deposits and withdrawals, and is designed for transaction purposes.ICO is a global pension platform.

Ponzi scheme is one of the oldest application scenarios of our mankind. After the emergence of the Internet, Ponzi scheme has been upgraded to "Internet +", that is, "Internet + Ponzi scheme". The Internet empowers Ponzi schemes, so events like Qianbao's tens of billions occurred. Before the Internet era, there were few Ponzi schemes of this scale. Empowered by the Internet, deposits and withdrawals were made through mobile APPs, and finally rolled In a few years, it has reached a scale of tens of billions.

The Internet has broken down geographical restrictions, physical restrictions, capital flow restrictions, and communication restrictions. As long as you have a mobile phone, you can play the Qianbao APP. Everyone participates, everyone deposits money, and everyone withdraws money. The number of people involved in the case is said to be in the millions. Relatively speaking, it is still an online pyramid scheme (Ponzi scheme 1.0), every day. The brainwashing cannot be stopped during meetings, and violent and illegal means are used, which is simply too weak. With the rise of blockchain technology, Ponzi schemes empowered by "blockchain+" can no longer be described as becoming more powerful than a tiger. It is simply like a chicken becoming a tiger. Like the Internet, "Blockchain+" technology has truly improved application scenarios. Ponzi schemes have further upgraded on the second generation basis of "Internet+". Because of major breakthroughs in scenario enhancements and improvements, they have become Ponzi Scheme 3.0. , its characteristics are mainly reflected in the following aspects:

1. Decentralization, no leadership. The smart contract of the blockchain runs automatically, does not require human intervention, and cannot be interrupted by humans. Code rules are hard-coded and cannot be tampered with. In terms of scene improvement, it has solved the biggest pain point of Ponzi schemes for thousands of years, that is, the problem of the leader running away. Because the leader is a program and a code, the blockchain program can exist permanently and no one can delete it. I think that was the biggest breakthrough. This virtual leader is always there. He cannot run away, will not run away, and will not change. The rules will never change, and he will adhere to the Ponzi line for one hundred, one thousand, and ten thousand years. Some people may say that smart contracts can be iterated and can also be manipulated to leave backdoors. That's right, but it can also be done without iteration. Even if it is iterated, it will be transparent and visible, and it will be clear at a glance if there is a backdoor. This is the characteristic of blockchain smart contracts. If you cheat on it, it is equivalent to taking out cheat sheets under the nose of the teacher. No one will participate in such a smart contract once it is online. Therefore, after technical review and verification, there are no backdoors, fair rules, and irrevocable smart contracts, which can be implemented using blockchain technology. Such reliability, once verified, remains unchanged forever. This is the certainty of smart contracts. For a program, even one character of the code remains unchanged. If it is run a million or a trillion times, the result will be consistent and deterministic.

2. Process transparency. The number of depositors, address account, amount, and time; the number of withdrawals, address account, amount, and time; all are visible. The blockchain has a public ledger function, which can be viewed by everyone around the world, and the ledger data viewed by everyone is exactly the same. Why did Qian Bao lose his position? Because we can’t see his backend account, how much money goes in every day, how much money comes out, and the specific details of each day.A detail. In this way, you can see the evaluation of your redemption ability before depositing money, and the evaluation result is absolutely certain, that is, it will not change after you deposit.

3. Complete anonymity. If you have heard of zero-knowledge proof technology. You can skip this part. To put it simply, many of the things we had in the mathematical knowledge base in the past had no application scenarios after invention. Later, it was discovered that this knowledge is very useful for anonymization. The cryptography technology in the blockchain can effectively achieve identity concealment. As we all know, Zhihu cannot achieve true anonymity in terms of technical structure, but blockchain can.

4. The rules are open and fair to everyone. Deposit one yuan and withdraw ten yuan as rebate. This is the rule for everyone and it will never change. You deposit one dollar, and first withdraw money to the person in front of you, and then the person behind you deposits money, and then withdraws money to you. Fair, right? I have reflected on this many times and think it is still fair.

5. Sustainable iteration. In low-level Ponzi schemes, the leader, product designer, profit distributor, and benefit recipient are often four in one. However, in a blockchain Ponzi scheme, the four roles can be completely logically separated. Achieve sustainable iteration. Through social-based collaboration, these projects can be continuously iterated. There are now 400 senior engineers who are developing around Bitcoin and constantly updating the code. These people don’t need to know anyone. As long as the application is valuable, they can keep iterating. Which centralized project can do this? Even a BAT-level company cannot hire so many professionals scattered around the world. This iterative method of socialization is not affected by changes in a specific person or organization.

Ponzi schemes empowered by "blockchain" use blockchain technology in different scopes, because the technology in this field is still constantly being updated. Applications such as smart contracts are these two The years just add up. The earliest blockchain application is Bitcoin. Some people think that Bitcoin itself has the characteristics of a Ponzi scheme. In 2013, I wrote an answer that implicitly pointed out that this new type of Ponzi scheme will be very lethal because it has the characteristics of a Ponzi scheme. It has the characteristics of no leader, open ledgers, no escape, and open and fair rules. Later, I also discovered that many people around me were more interested in Ponzi schemes than in blockchain technology. Once they hear that Bitcoin is not a Ponzi scheme, they usually walk away silently before I start talking about blockchain technology. On the contrary, if you tell them that it is a Ponzi scheme, they will then ask where to buy it. ? Of course, there is a lot of controversy over whether Bitcoin is a Ponzi scheme, because the actual application scenarios of Bitcoin are constantly expanding.

In the ICO craze, there are many air coins, which are fake Ponzi schemes and have no application scenarios. People who buy these air coins probably know that they are Ponzi schemes. , but seeing that the packaging was good, I bought it. There are estimated to be hundreds or thousands of such air coins. The scope of the cases involved spans the world, and the amount exceeds tens of billions. These ICOs use smart contracts for subscription and distribution, and thenThen it circulates on its own in the secondary market. In this case, withdrawals are not guaranteed, and some people may lose all their money. Many blockchain professionals have always wanted to draw a clear line between these applications, because although these air coins use part of blockchain technology, there is still a centralized organization or individual behind them, with very few network nodes, and users cannot deposit funds. At that time, it was directly aggregated to an organization or individual (and therefore would be swept away). However, there is no doubt that Aircoin still uses the blockchain for deposits and raising funds, which solves part of the problem of running away and increases the scope and scope of the Ponzi scheme. Communication ability. This is what happens objectively.

Since this year, with the advancement of technology, Ponzi schemes that use smart contracts to achieve more decentralization have begun to surface. Deposits and raises are locked using smart contracts to complete a complete closed loop of deposit, subscription and withdrawal. It can already be a very pure blockchain application. There are some blockchain games that can be openly admitted. After their release, they publicly claimed that they were a Ponzi game. He said: Look, the rules are transparent, the code is visible, and the deposit contract is Locked, no escape, no human intervention, automatic withdrawal. Play early and earn early. This is a crucial breakthrough, publicly admitting that you are a Ponzi scheme, which is something that Ponzi schemes 1.0 and 2.0 could not do before (they did not dare to openly admit that you are a Ponzi scheme). incredible. The gameplay is simple and crude.

This solves a major obstacle in the previous Ponzi scheme promotion process. In the past, it relied on brainwashing to win people's heads, but now it relies on code to speak. You see, "This program won't run away on its own. Is there no backdoor in it? The leader has disappeared, right? Even if Satoshi Nakamoto is caught, it won't affect the continued execution of the program, right?" So the first batch of blockchain Ponzi schemes fell into the trap, right? What is important are coders who understand the code, and then these coders stand up and say that after technical verification, it is indeed such an effect, driving other people who do not read the code to join.

In addition to Ponzi scheme application scenarios involving entertainment, gambling, and fraud, blockchain also has opportunities to flex its muscles in Ponzi scheme application scenarios involving the national economy, people's livelihood, and public utilities, and can even be extremely effective. Dadi enhances people's sense of gain and happiness, and actually improves people's lives. For example, the application of national or global public pension platforms based on blockchain. Because this platform is based on blockchain, it can solve several major shortcomings of pension funds:

1. The problem of fund misappropriation. The ledger is open, and the funds are locked in a decentralized manner. No one can unlock it, except recipients who meet the rules and can withdraw funds. No possibility of appropriation.

2. Inflation problem. The current pension system adjusts coefficients every year based on a series of complex algorithms such as inflation. After adjustment, recipients are often dissatisfied because the total amount has increased, but their purchasing power has decreased. By taking advantage of the fact that virtual currency cannot be issued additionally, the inflation rate can be restrained and all the money received can be guaranteed to be real money.

3. Unpredictable problems. It is difficult for us to predict the pension withdrawal situation in 30 years, but it can be predicted in advance through smart contracts. Stimulate payment enthusiasm.

4, policy loopholes and fairness issues. Any pension policy targets diverse groups and there will be unfair situations. Everyone wants to pay less and get more, pay later and withdraw early. The transparency of the blockchain is down to each account, rather than a set of general policies that plug loopholes in the implementation process. Everyone is the same, pay more and get out more, pay early and get out early. It can even be inherited and never lost.

This greatly reduces the burden and cost of managing pensions by the state. Things that the existing pension system can do can still be done after using blockchain technology, such as state subsidies. Just put money into the contract, and it will be locked. There will be no fakes, such as forced payment, and every record will be true and traceable. All in all, all existing systems and rules can be put on the chain, which improves efficiency and output levels and ensures fairness without affecting the existing effects. Moreover, because the cost of the huge management system is reduced, everyone can receive The absolute number may increase a lot, which will have the effect of actually improving people's lives. Again, it will increase the sense of gain and happiness. When it comes to pensions, the subject of our trust has changed from a single national government to a national government + blockchain, and more than 50% of the process has become a fixed software program. Aren’t we more trusting in this way? If the on-chain pension system is 100% implemented, it can even break the national restrictions and be implemented by a piece of code that is honest, cannot cheat, and cannot be tampered with. Automatic deposits and automatic withdrawals. Trusting it is like trusting a dead person. There will be no mistakes.

The design of the next generation to support this generation is a great invention of our human evolution, which has accelerated the speed of social development. On the surface, it seems that the last generation on earth will suffer more, but in fact it is not. Yes, because the last generation of people on earth may not necessarily know that they are the last generation (maybe they know it in the last few seconds, but so what). What’s more, the earth has disappeared, does the last generation of people still need to withdraw funds for retirement? Obviously, no need.

The biggest disadvantage of a Ponzi scheme is that it runs away midway and the funds are broken. Blockchain has a clear technical solution to solve this problem, and it can also be proven and falsified, so , this technology is scientific. Once the disadvantages are eliminated and the benefits gradually emerge, the Ponzi scheme will achieve greater development in the future.

I also want to ask a question. In human history, are there any things that were originally negative or useless? Later, with the development of technology, the disadvantages were eliminated or avoided, and the functions were discovered. And then become more and more useful and important?

『四』What are the technical attributes of blockchain

Blockchain technology originated from a scholar with the pseudonym "Satoshi Nakamoto" in 2008 The foundational paper "Bitcoin: A Peer-to-Peer Electronic Cash System" was published in 2016. 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 inexhaustible.A tamper-proof and unforgeable distributed ledger. The technical attributes of the blockchain network mainly include: anonymity, decentralization, non-tampering, distributed storage, multiple backups, data encryption, etc. Anonymity means that during the transaction process of any user in the blockchain network, the transaction data sent does not contain any data related to personal information. Transactions are conducted between users through addresses, and addresses can theoretically Infinite generation. Decentralization refers to the method of reaching consensus through multi-node joint decision-making, converting the original single management decision-making solution into a multi-party joint decision-making, and all nodes in the blockchain network have equal data control rights and obligations, and any node can Data stored in the blockchain network can be accessed, and the access process can be executed synchronously and concurrently. Immutability means that except for the genesis block, every subsequent block in the blockchain contains the unique hash value of the data in the previous block, and then the blocks are connected in series through the unique hash value. Once the block data of one of the nodes is changed, the hash value generated by this block will also change. During the block connection process, the subsequent block cannot find the block corresponding to the hash value of the previous block, and the blockchain is forced to disconnect, and the data saved by the node will no longer be recognized by other nodes. , becomes worthless. The concepts of distributed storage and multiple backups are different from the distributed storage of current databases. The distributed storage of blockchain not only stores data in different geographical locations and physical devices. Each device has complete ledger data instead of data fragments. Data redundancy can be solved to a certain extent by using Merkle tree technology. remaining questions. Data encryption mainly refers to using asymmetric encryption to encrypt data with a public key and decrypt it with a private key or encrypt it with a private key and decrypt it with a public key. In this encryption method, during the data transmission process, the data does not need to contain the key for data decryption. Instead, the decryption operation is completed through the key in the hands of the recipient, eliminating information security risks caused by interception during the data transmission process.

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Reposted from bitsbetter Pirate King 2021-08-0510:17:0810th floor: The currency is stored on the chain. It only requires a private key and corresponding address to confirm safety. The address is the real wallet. Generally speaking, the so-called "wallet" is a private key package. bitsbetter Pirate King 2021-08-0511:15:3112th Floor: Put the private key in someone else's possession...

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Bitcoin is a currency. Saifedean Ammous wrote a book called "The Bitcoin Standard" in which he set out a series of tests to determine what qualities a currency must have andDivide it into three main categories: Currency must have these characteristics: The first point is to have the function of storing value (i.e., preservation of value,...

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『五』 Zhanjiang, Guangdong The police detect telecom fraud cases using blockchain technology. What are the applications of blockchain technology?

It is understood that blockchain technology is currently used in many places, but because it is relatively unfamiliar, it often gives people a It feels very far away. Blockchain technology has the characteristics of decentralization, traceability, non-tampering, transparency, and anonymity. In addition to those projects that give people a high-end feel, it also has many applications in daily life. , is around us, Crypto Finance will tell you about the blockchain technology applications around us.

1. Blockchain + Finance

If we talk about blockchain applications, The first to bear the brunt is finance.

In the second half of 2018, Xiaomi Fintech and Kingsoft Cloud jointly launched the financial alliance chain, using blockchain technology to accelerate information flow, reduce financing costs for the asset side, and improve asset management efficiency. .

In June 2018, JD Finance, Huatai Securities Asset Management and Industrial Bank established an asset securitization alliance chain, using blockchain technology for the JD Baitiao ABS project, aiming to use blockchain technology to achieve Data fidelity, anti-tampering, and intelligent management of special plans at the basic asset level.

4. Blockchain + product traceability

Walmart requires it Suppliers will use blockchain to track the source of goods before January 31, 2019.

Ant blockchain technology participated in Double Eleven for the first time to trace the origin of overseas goods.

Blockchain There are many practical applications, and I believe that blockchain technology will bring us more convenience in the future.

『Lu』 Which fields are suitable for blockchain to be used in?

The first one, information Security industry.
Second, bill business field
Third, payment and settlement business.
Fourth, identity/account authentication business.
Fifth, proof of rights and interests Each node participating in the maintenance of the blockchain can obtain a complete data record. Using the characteristics of reliable and collective maintenance of the blockchain, the rights of the owners of the rights and interests can be confirmed.
Blockchain technology is really powerful. With the advancement of the times, this technology has the potential to change the development direction and trend of the financial industry. And because the blockchain technology itself has the characteristics of large capacity, high-speed computing, security, convenience, etc., it has made great progress and popularization of the technology. A strong foundation.

『撒』 Blockchain applications include

Blockchain applications include:

(1) Blockchain + Medical: In the medical field, blockchain can use its anonymity, decentralization and other characteristics to protect patient privacy. Electronic health records (EHR), DNA wallets, drug anti-counterfeiting, etc. are all possible application areas of blockchain technology. IBM Last year's report predicted that 56% of the world's medical institutions will beWill invest in blockchain technology.

(2) Blockchain + Internet of Things: The Internet of Things is a very broad concept. If communications, energy management, supply chain management, sharing economy, etc. are included, the IoT of blockchain technology Networked applications will become a very important application field.

(3) Blockchain + IP Copyright & Culture and Entertainment: The Internet is developing better and better, and digital music, digital books, digital videos, digital games, etc. have gradually become mainstream . The rise of the knowledge economy has made intellectual property rights a core element of market competition. However, intellectual property infringement is serious in the current Internet ecosystem, and the copyright protection of digital assets has become a pain point in the industry.

Blockchain has the characteristics of disintermediation, consensus mechanism, and non-tampering. Using blockchain technology, it can effectively integrate all aspects of the cultural and entertainment value chain, accelerate circulation, and shorten the value creation cycle; at the same time , can realize the value transfer of digital content, ensure the credibility, auditability and transparency of the transfer process, and effectively prevent piracy and other behaviors.

(4) Blockchain + Public Services & Education: In the fields of public services, education, charity and public welfare, issues such as file management, identity (qualification) certification, and public trust all exist objectively. Traditional The method is to rely on a credible third party for credit endorsement, but problems such as fraud and deficiencies still exist. Blockchain technology can ensure the integrity, permanence and unchangeability of all data, and thus can effectively solve the difficulties and pain points in these industries in terms of certificate storage, tracking, association, and backtracking.

『8』 Application aspects of blockchain

The main application scope of blockchain includes: digital currency, transaction settlement of financial assets, digital government affairs, certificate deposit and anti-counterfeiting data services, etc. field. Blockchain is a database technology that links data blocks in an orderly manner. Each block is responsible for recording a file data and encrypting it to ensure that the data cannot be modified or forged.

Blockchain is essentially a distributed database system that uses cryptography technology for multi-party participation, joint maintenance, and continuous growth. It is also called a distributed shared ledger. Each page in the shared ledger is a block, and each block is filled with transaction records. The anonymity, decentralization, openness, transparency, and non-tamperability of blockchain technology make it highly favored by enterprises and has gained More extensive application attempts.

Blockchain application scope 1. Financial field

Blockchain can provide a trust mechanism and has the potential to change the financial infrastructure. Various financial assets such as equity, bonds, bills, warehouse receipts, fund shares, etc. It can be integrated into the blockchain technology system and become a digital asset on the chain, which can be stored, transferred and traded on the blockchain.

The decentralization of blockchain technology can reduce transaction costs and make financial transactions more convenient, intuitive and secure. The combination of blockchain technology and the financial industry will inevitably create more and more business models, service scenarios, business processes and financial products, thereby providing financial markets, financial institutions, financial services and financial industry formats.Development brings more impact. With the improvement of blockchain technology and the combination of blockchain technology with other financial technologies, blockchain technology will gradually adapt to the application of large-scale financial scenarios.

2. Public service field

Traditional public services rely on limited data dimensions, and the information obtained may not be comprehensive enough and have a certain lag. The non-tamperable nature of the blockchain makes the digital certification on the chain highly credible. It can be used to establish new authentication mechanisms in the fields of property rights, notarization and public welfare, and improve the management level of public services.

Relevant information in the public welfare process, such as donation projects, fundraising details, fund flows, recipient feedback, etc., can be stored on the blockchain to meet the privacy protection of project participants and other relevant laws and regulations. Under the premise of requirements, public disclosure will be made conditionally to facilitate public and social supervision.

3. Information security field

Using the traceability and non-tampering characteristics of blockchain, we can ensure the authenticity of data sources and ensure the non-forgery of data. Blockchain technology will fundamentally change information Security issues of the propagation path.

Blockchain is reflected in the following three points in the field of information security:

User identity authentication protects data integrity and effectively prevents DDoS attacks

The distributed storage architecture of blockchain will make Hackers are at a loss as to what to do. Some companies have begun to develop a distributed Internet domain name system based on blockchain to eliminate the root cause of the current DNS registration shortcomings and make the network system cleaner and more transparent.

4. Internet of Things field

Blockchain + Internet of Things can allow each device on the Internet of Things to operate independently, and the information generated by the entire network can be protected through smart contracts in the blockchain.

Security: Traditional IoT devices are highly vulnerable to attacks, data loss and maintenance costs are high. Typical information security risk issues for IoT devices include low firmware versions, lack of security patches, permission loopholes, too many device network ports, and unencrypted information transmission. The blockchain's consensus mechanism for network-wide node verification, asymmetric encryption technology and distributed data storage will significantly reduce the risk of hacker attacks.

Trustability: The traditional Internet of Things is managed and controlled by a centralized cloud server. Due to the security of the device and the opacity of the centralized server, it is difficult to effectively protect user privacy data. The blockchain is a distributed account book. Each block is interconnected and has its own independent working ability, ensuring that the information on the chain will not be tampered with at will. Distributed ledgers can therefore provide trust, ownership records, transparency and communication support for the Internet of Things.

Effectiveness: Limited by cloud services and maintenance costs, the Internet of Things is difficult to achieve large-scale commercial use. The traditional Internet of Things realizes communication between things through centralized cloud servers. The disadvantage of this model is that as the number of access devices increases, the server faces more load, requiring enterprises to invest a lot of money to maintain the normal operation of the IoT system.

Blockchain technology can directly realize point-to-point transactions, omitting the labor of other intermediaries or personnel.Service expenditures can effectively reduce the costs incurred by third-party services and maximize benefits.

5. Supply chain field

The supply chain consists of many participating entities, with a large amount of interaction and collaboration. Information is discretely stored in their own systems, lacking transparency. The lack of smooth information makes it difficult for various participating entities to accurately understand the real-time status and existing problems of related matters, affecting the collaborative efficiency of the supply chain. When disputes arise between parties, it is time-consuming and laborious to provide evidence and pursue accountability.

Blockchain can make data open and transparent among various entities, thereby forming a complete, smooth, and non-tamperable information flow throughout the entire supply chain. This can ensure that all entities promptly discover problems arising during the operation of the supply chain system and find targeted solutions, thus improving the overall efficiency of supply chain management.

6. Automotive Industry

Last year announced a partnership using blockchain to build a proof of concept to streamline the car rental process and build it into a “click, sign up, and drive” process. Future customers choose what they want The rented car enters the public ledger of the blockchain; then, sitting in the driver's seat, the customer signs the rental agreement and insurance policy, and the blockchain updates the information simultaneously. This is not an imagination, for car sales and car registration That said, this type of process may also develop into reality.

7. Stock Trading

For many years, many companies have worked to make the process of buying, selling, and trading stocks easy. Emerging Blockchain Chain startups believe that blockchain technology can make this process more secure and automated than any previous solution. At the same time, blockchain startup Chain is working with Nasdaq to enable private companies through blockchain. Equity transfer

8. Government management

Government information, project bidding and other information are open and transparent. Government work is usually subject to public attention and supervision. Since blockchain technology can ensure the transparency and immutability of information, it is very important to the government. The implementation of transparent management plays a great role. There is a certain degree of information opacity in government project bidding, and enterprises also have the risk of information leakage during the sealed bidding process. Blockchain can ensure that bidding information cannot be tampered with and can ensure the transparency of information nature, forming a common trust among competitors who do not trust each other. It can also arrange subsequent smart contracts through the blockchain to ensure the construction progress of the project and prevent the growth of corruption to a certain extent.

There are many more applications of blockchain technology, and this is just a fulcrum of blockchain applications. In the future, blockchain technology will be applied everywhere

『九』 Blockchain is suitable What fields is it applicable to?

There are many applicable fields for blockchain. Just like when the Internet first started, some people would ask what fields the Internet is applicable to. In the future, it will be applicable to all aspects of our lives. Now we have seen that it is applicable to Medical, education, aviation, finance, social networking, games and other fields.