虚拟币征信区块链是真的吗,虚拟币征信区块链怎么查

虚拟币征信区块链是真的吗？这是一个值得深思的问题，因为它涉及到虚拟币的信用和安全性。答案是肯定的，虚拟币征信区块链是真实存在的，它是一种分布式数据库，可以记录所有虚拟币的交易信息，并跟踪虚拟币的流通情况。

那么虚拟币征信区块链怎么查呢？主要有三个关键词，分别是区块链浏览器、智能合约和交易排名。

区块链浏览器是一种可以查看区块链上记录的所有信息的工具，它可以帮助用户查看虚拟币的实时价格和交易量，以及虚拟币的流通情况。区块链浏览器也可以帮助用户查看比特币或以太坊的交易历史，以及比特币或以太坊的持有者的信息。

智能合约是一种可以在区块链上执行的自动化合同，它可以跟踪虚拟币的流通情况，并记录虚拟币的交易数据。智能合约可以帮助用户查看虚拟币的实时价格，以及虚拟币的交易历史和流通情况。

交易排名是一种查看虚拟币的排名的工具，它可以帮助用户查看虚拟币的排名，以及虚拟币的价格和交易量。交易排名还可以帮助用户查看虚拟币的流通情况，以及虚拟币的持有者的信息。

总之，虚拟币征信区块链是真实存在的，可以通过区块链浏览器、智能合约和交易排名等工具查看虚拟币的实时价格、交易量和流通情况。因此，虚拟币征信区块链提供了一种可靠的信用机制，可以帮助用户更好地了解虚拟币的安全性和信用状况。

请查看相关英文文档

『一』 What is "blockchain"

Blockchain technology is a technology that jointly maintains reliable databases through decentralization and elimination of trust. Four keywords can be used to describe blockchain technology: trust reduction, decentralization, collective maintenance and reliable database.

When we talk about the concept of "blockchain", Bitcoin is definitely a topic that will not be ignored. In recent years, Bitcoin has begun to enter the public eye, especially in 2017, which has continued to skyrocket throughout the year, making many people aware of this emerging thing.

Blockchain is actually the underlying technology of Bitcoin. Bitcoin exists because people on the Internet who don’t know each other can move and trade digital currency through the Bitcoin network. And this is driven by blockchain technology. All Bitcoin transactions are recorded on the blockchain ledger. To a certain extent, in the application of Bitcoin, the blockchain plays the role of the underlying database of the bank transaction system. Both are for "keeping accounts". Although it is not very prudent to refer to the blockchain directly as a "database", for the sake of ease of understanding, let's temporarily call it a decentralized, shared, and encrypted database. If described in professional terms, blockchain is a distributed ledger technology.

Blockchain can usually be divided into the following types:

1. Public blockchain. Anyone can access data on a public blockchain, and anyone can issue transactions waiting to be written to the blockchain. Participants in the consensus process (corresponding to miners in Bitcoin at the time) maintain the security of the database through cryptography and built-in economic incentives.

2. Collaborative blockchain. The nodes participating in the blockchain are pre-selected, and there are likely to be good network connections between the nodes. Other consensus algorithms other than proof-of-work can be used on such a blockchain. For example, a blockchain has been established among a hundred financial institutions, and it is stipulated that more than two-thirds of the institutions must agree to reach a consensus. The data on such a blockchain can be either public or shared internally by these node participants.

3. Private blockchain. The participating nodes are only individual users, and the access and use of data are subject to strict permission management. Most of the internally used blockchain technologies announced by some financial institutions recently are vague and may fall into this range.

The blockchain is a public ledger. There is no centralized hardware or management organization. Anyone can automatically verify the authenticity of the ledger and easily discover whether the ledger has been tampered with by others.

In a word, the blockchain is a public ledger that can be verified by everyone.

The concept of being verifiable by everyone is crucial to blockchain.

Bitcoin uses the blockchain to record all transactions, so anyone knows the number of Bitcoins on each account.

ThatWell, as a publicly verifiable ledger, what are some use cases for blockchain?

In fact, there are many use cases that can be thought of. Blockchain is suitable for any data that can be recorded on a public ledger. Here are 4 examples:

1. Decentralized domain name server, namely domain currency. The domain name server is actually a ledger that records domain names.

2. Trustless public key encryption, such as https that discards unreliable certification authorities.

3. Ownership records, truthfully record the items and their corresponding owners.

4. Contracts and performance guarantees, the account book truthfully records the parties to the contract and saves the contract text.

But don’t forget that blockchain also has a very important component.

The ledger recorded using blockchain technology will always be updated. New data such as transactions, domain name inputs, records and contracts will be converted into hash values ​​of the same length by the hash algorithm and saved. However, hashing algorithms are not only not free but also very expensive.

Therefore, the ledger itself needs to have a recognition system to recognize the person who enters the block hash value.

In Bitcoin, this system is called mining and is rooted in the Bitcoin protocol. Bitcoin miners use a hash algorithm to convert transactions waiting for verification into hash values, and charge a certain amount of Bitcoin as a service fee.

Therefore, for non-monetary use cases, blockchain needs to find a way to bear the high cost of hashing algorithms.

I would like to remind everyone that my answer mainly focuses on the possible use cases of blockchain technology, and does not cover all aspects of blockchain, such as why hashing algorithms are so expensive. I'm sure you can find a lot of detailed information about Bitcoin and other blockchain applications online.

Supplement

Although blockchain technology has many advantages, there are still some less than ideal use cases. For example, there is no way to convert Bitcoin into any national currency; a ledger with billions of data entries would take up space and be impractical.

Bitcoin has shown the world that blockchain technology is feasible in principle, and people are also trying to solve these increasingly prominent problems, such as technological transformation of Bitcoin or the introduction of a completely Different blockchain technologies. I think the following two methods are worth trying: one is to split the ledger according to certain standards such as the payer address, and the other is to introduce a main blockchain to verify the sub-blockchain. Blockchain technology is ever-changing and dazzling, and it’s unknown whether someone is already making such an attempt. But Bitcoin is still the world's first currency blockchain, what others call a cryptocurrency.

Whether in the technology circle or goldIn the financial circle, blockchain has become the hottest buzzword, bar none. Blockchain has core advantages such as decentralization and trustlessness, and can perfectly solve problems such as information asymmetry, high transaction costs, and trust of strangers in the development of the sharing economy, making "individual economy" possible. Based on this, blockchain technology is considered to be the core technology that has the greatest potential to trigger the fifth wave of disruptive revolution after steam engines, electricity, information and Internet technology.

In this context, a blockchain craze was born in society, and everyone praised it overwhelmingly. Dialectics tells us that everything has flaws, and only by seeing the pros and cons of things can we make rational decisions. Therefore, in this article, Xue Hongyan (Hong Yanweiyu), a senior researcher at Suning Financial Research Institute, focuses on pouring some cold water on the blockchain.

| What is Blockchain

Blockchain, English Blockchain, has a rather mysterious technological flavor in its name, and can be simply broken down into "data blocks" and "links". Each data block contains all the information exchange data of the system within a certain period of time, and is encrypted using cryptographic methods; the link means that each block has a link relationship with the next block, thus forming a blockchain.

It is generally believed that blockchain has two major characteristics: decentralization and trustlessness. A brief introduction is as follows:

Since each block contains all the information exchange data of the system within a specific period of time, Therefore, each block is equal, and the damage of a single block does not affect the security of the entire system, so the blockchain has decentralized characteristics.

Similarly, since each block contains all the information of the system, the authenticity of the information can be cross-verified. Only by breaking through more than 51% of the nodes can the information be tampered with. In a large enough blockchain system , the cost is extremely high, it can be considered that the information in the blockchain is true, so the blockchain has the characteristics of trustlessness.

Most people’s understanding of blockchain begins with Bitcoin. The relationship between the two is that blockchain is the underlying technology and concept, and Bitcoin is only the most popular application of blockchain at present. .

Maybe the above is not popular enough. Finally, let me summarize, what do you think the blockchain is? Is it a disruptive new technology? NO! According to Xue Hongyan (Hong Yanweiyu), a senior researcher at Suning Financial Research Institute, blockchain is not so much a new technology as it is a new ideological concept. The information encryption and other technologies included in the blockchain have been around for a long time, and it is more of a conceptual innovation. This is also the reason why the blockchain has a huge impact. New technologies will be surpassed sooner or later, ranging from one or two years to four to five years; only innovative ideas have enough energy to affect all aspects of the economy and society.

| Blockchain is expected to change the underlying rules of the financial system

In applications in the financial field, blockchain will change the transaction process and record keeping methods, fromIt has significantly reduced transaction costs and significantly improved efficiency, and is considered to have a broad market environment in digital currency, cross-border payment and clearing, bill trading, securities issuance and trading, property rights transactions, customer credit reporting, anti-fraud, and anti-money laundering.

Such a good technology is naturally sought after by everyone. Like many traditional financial people, Hong Yanweiyu resisted it at first, thinking that this thing was not that great, and did not do any research specifically. Later, as the research on financial technology gradually deepened, it was discovered that blockchain was an obstacle that could not be bypassed, because whether it was robo-advisory, big data risk control or online lending, they were only technological innovations at the financial business level and risk control level. It has not penetrated the bottom layer of the financial system. What is the underlying layer of the financial system? Naturally, it is payment and settlement, transaction rules and system interaction. What the blockchain changes is precisely the underlying rules.

Therefore, throughout the world, financial institutions are the most active in researching blockchain. If nothing else, they are really afraid. After the decentralization and trustless features of the blockchain are fully utilized, what else will the intermediaries of financial institutions do? It is estimated that this is also the first feeling of many people who have a preliminary understanding of blockchain.

In this article, Hong Yanweiyu focuses on pouring cold water on this view.

| Subverting the financial system, blockchain still faces two mountains

Marxist dialectics tells us that everything has two sides. The more prominent the advantages, the more obvious the flaws. It’s just the perspective. Just different. The two major problems with blockchain subverting the financial system lie precisely in the two major advantages of decentralization and trustlessness.

First, let’s talk about decentralization. First, we need to clarify a truth. Does centralization necessarily mean low efficiency? Of course not. Within a specific scope, the concentration of resources brought about by centralization can greatly improve efficiency. This is also the reason why human beings evolve from individuals to villages to tribes and then to countries in the process of evolution. Take UnionPay as an example. UnionPay is the clearing and settlement center for the domestic banking industry. After UnionPay is established, each bank only needs to connect with UnionPay to realize transactions with all banks. If it is decentralized, without UnionPay, each bank will need to When communicating with all counterparties, which one is more efficient? Therefore, there is no need to beat centralization to death with a stick. The decentralization feature of blockchain is destined to only play a role in specific fields (that is, fields that are not suitable for centralization). How can it subvert everything?

Furthermore, it is a question of trust. There is nothing wrong with detrusting itself, but the technical logic behind it is deeply flawed. Blockchain relies on universal accounting to achieve trustlessness, that is, all transaction information is retained in each block for system cross-verification to identify authenticity. Here comes the problem. Each block retains all transaction information. There is no problem on a small blockchain. However, as more and more information is added, it will inevitably lead to an explosive growth of transaction information and will also bring information. Sharp rise in storage costs. At the same time, the greater the amount of information, the longer cross-validation takes and the lower the efficiency.Therefore, the blockchain solves the trust problem, but it brings about rising costs and declining efficiency.

Nothing in the world is perfect, and the same is true for blockchain.

As a conclusion, Hongyanweiyu wants to clarify that blockchain, as a conceptual innovation, does have great value and can also have a disruptive impact in specific fields. However, the current one-sided thinking about blockchain is problematic. Eastern wisdom tells us that "the most brilliant way is the golden mean." In the face of anything, it is wisest to maintain the golden mean.

(Text/Xue Hongyan, senior researcher at Suning Financial Research Institute; WeChat public account: Hongyan Weiyu)

As early as a few years ago, the word "mining" came with Bitcoin is well known for its popularity. Many people know about Bitcoin first and then the blockchain, and they even don’t know about the blockchain yet. By definition, blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction, which is used to verify the validity (anti-counterfeiting) and generation of its information. Next block.

I am not a computer technology expert. The following introduction to blockchain comes from reading and comments from expert friends and is for reference only.

If you want to use one word to explain blockchain, it is: distributed accounting.

To understand what this word means, you need to first understand that traditional accounting has a center. For example, in a bank, when you withdraw money from a bank deposit or lend money to others through the bank, the bank is the center. All these transactions are based on the bank's credit. What if the bank cheats? Or is it more serious, is the country cheating? The Kuomintang's indiscriminate issuance of gold yuan notes at the end of its rule in mainland China, as well as the hyperinflation in Weimar Germany and Zimbabwe, which made the currency less valuable than toilet paper, are very famous examples.

Golden Yuan Coupons

This is the problem that blockchain is aimed at. They believe that decentralized accounting is non-modifiable and non-repudiable. How to achieve decentralized accounting? The basic idea is that all users store all transaction records, making it very difficult to illegally modify the ledger through mathematical methods. In this way, the reliability of the ledger is guaranteed.

Specifically, all users exhaustively enumerate random number variables, and the first user to obtain a specific required hash function value (Hash) will have the right to record this round of transactions and obtain the corresponding Bitcoins award. It is transmitted in the form of data blocks, and the data blocks are connected into a chain by appending at the end, so it is called a block chain.

After listening to the introduction, you may feel that this idea is interesting, but it is not as exciting or revolutionary as advertised. Your feeling is right. In fact, the basic logic of blockchain isThere are some unavoidable issues.

For example, the current size of the complete Bitcoin public ledger has exceeded 150 G, and is rapidly increasing at a rate of tens of G per year - just to support 5 million users and 30 million transactions per year. If its processing volume is one day comparable to that of Alipay, the size of the Bitcoin ledger will increase by more than 500 terabytes per year. This is equivalent to backing up the Alipay server's storage data on all users' personal computers. Do you think this is a good idea?

For another example, in the traditional banking system, if you lose your password, it is no big deal. Just report it to the system in time, and your wealth will not disappear. But in the blockchain system, if you lose your password, it will be a huge trouble, and your currency will not be recovered. Not happy? Is it surprising?

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. 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 layman’s terms, it is playing mahjong. Four people can take turns to be the banker, and each other can shoot four people. They all have their own ledger records, but if you want to modify the ledger, you must have more than 50% of the modification rights, so the cost of cheating on the ledger is very high.

In the future, blockchain will be used more in finance to combat money laundering and fraud, because all information can be traced, and in culture it can be used for copyright protection, etc.

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I have seen a lot of people’s explanations of blockchain in official terms, and some may not even be clear to the person explaining it. I will explain blockchain in vernacular below to ensure that everyone can read it. Gotta understand.

What is blockchain? Let me give an analogy. In 50 years, you can buy an electric fan from the supermarket. This electric fan will automatically mine coins for you when it is blowing. You can mine coins automatically while using the electric fan. When you use this electric fan, When the fan breaks down, you can use the mined coins to repair the electric fan. Of course, you can also use the mined coins to buy a new electric fan. Many people think wrongly! Wouldn’t the profits of merchants be less? Let me tell you about a certain brand. When the products of this brand are sold to you, the products themselves may even be sold to you at a loss. However, once the number of users becomes large and the users become more sticky, they can be paid through membership fees or service fees. Such small fees or other ways to make profits. Just like this, the mined coins can be purchased and repaired. Although the merchant's profit may be reduced, the merchant has gained more users and greater user stickiness. By this time, it only takes a minute for the merchant to make money.

And the electric fan you bought is equivalent to winding it up for you. What is winding up? If you put your electric fan on the street now, and 10 people come to grab it, you have no way to prove that the ownership of this electric fan is yours, but once you put it on the chain, it is equivalent to being bound to you, and you can prove it.

Therefore, the essence of blockchain is to help make people’s lives more convenient. It is equivalent to upgrading on the basis of the Internet, making it safer and more convenient. This is blockchain! It's that simple.

The security of the blockchain is reflected in its irreversibility and the data cannot be tampered with. We all know that in today's society, any data can be modified and conquered by hackers, but the data in the blockchain is impossible to change. Once generated, it cannot be modified unless all users in the blockchain work together. Agree to modify the data, but this is unlikely to happen.

At present, the blockchain is still very immature, just like the Internet bubble burst in 2000. When the bubble bursts, a truly valuable blockchain Internet will be hatched. company.

The wheel of history will not go backwards. Many people are unwilling to accept blockchain. Just like telling you that you can shop online 20 years ago, this is the same ridiculous thing. Time will eventually prove it. .

1. The main function of blockchain is to store information. Any information that needs to be saved can be written to the blockchain and read from it, so it is a database.

2. Anyone can set up a server, join the blockchain network and become a node. In the world of blockchain, there is no central node. Every node is equal and stores the entire database. You can write/read data to any node, because all nodes will eventually be synchronized to ensure that the blockchain is consistent.

3. Everyone works on the same blockchain, everyone publicly shares the current state of the blockchain, everyone agrees on the rules for new data submission and tampering with the blockchain is prohibited. It is difficult to operate in terms of computing power.

If we assume that the database is a ledger, reading and writing the database is an accounting behavior:

Anyone can verify this public ledger, but there is no single The user can control it. Participants in the blockchain system will jointly maintain the update of the ledger: it can only be modified according to strict rules and consensus, and there is a very exquisite design behind this.

(1) Accounting, the system will find the person with the fastest and best accounting within a period of time, let this person do the accounting, and then broadcast the information on this page of the account book to everyone else on the entire network. node, which is equivalent to changing the database record; (consensus mechanism, cryptography)

(2) Verification, other valid nodes in the entire network check the correctness of the block accounting, and stamp the time Stamp to confirm that the block is legal; (timestamp, mathematics)

(3) Form a single chain, that is, compete for the next block after the previous legal block; (smart contract, encryption technology)

(4) Storage, the account book is stored in blocks, and with the transaction With the increase, new data blocks will be appended to the existing chain to form a chain structure; (distributed structure, information technology)

(5) Backup, every participating trader is a block Each node of the network has a complete backup of the public account book, which is a distributed ledger.

Features

1. The blockchain has no administrator and is completely centerless. It is precisely because it cannot be managed that the blockchain cannot be controlled. Without an administrator, everyone can write data into it. In order to ensure the trustworthiness of the data: the technology of blockchain makes it impossible to tamper with the data once it is written.

2. Close to zero trust cost.

The cycle time required for Internet companies to build their credit is extremely long. For example, Taobao often takes several years to build its credit. In the blockchain, everyone trusts the code, algorithm and rules, so the cost of trust is extremely low.

3. The marginal cost of constructing and trading assets approaches zero.

If traditional assets are to be used for trading, they need to rely heavily on third parties, such as investment banks, banks, securities firms, etc., for packaging and endorsement, and the fees and thresholds are extremely high. With blockchain, these will not be a problem, and the cost is extremely low.

The value transfer attribute of the blockchain also naturally solves the payment problem, and has the genes to support global payments.

Blockchain, simply put, is the underlying technology that supports ICO (virtual currency). The popular Bitcoin is an application of ICO. In other words, the connotation of blockchain is richer, and its main features are:

1. Blockchain is equivalent to digital trust. Both parties to the transaction can independently enter into digital contracts, and companies providing blockchain services are equivalent to Digital trust company;

2. The purpose and characteristics of blockchain are "3 de-intermediaries" - de-intermediation, de-currency, de-sovereignty; yes

3. Bitcoin is An application of blockchain, Bitcoin is a cryptocurrency, and all blockchains apply digital encryption technology;

4. The "3 Go" feature is targeted at the financial industry, and only when high frequency is required Blockchain is only needed in the financial field of transactions;

5. Large platforms with a user base are more suitable for applying blockchain, and small companies’ participation is of little value, so Zuckerberg’s 2018 New Year’s wish includes To study digital cryptocurrency. Kodak also launched a digital currency, sending its stock price soaring.

Furthermore, when it comes to Bitcoin, it can be cashed out and exchanged into the currencies of most countries. Users can use Bitcoin to purchase some virtual items, or use BitcoinPurchase real-life items. In this sense, Bitcoin is similar to the world's currency, close to gold.

Peter Thiel, co-founder of PayPal and an early investor in Facebook, believes that Bitcoin is "undervalued" by people and compares it to gold. He said: "If one day Bitcoin becomes the online equivalent of gold, then it will have room for appreciation."

But on January 3, the "People's Daily" published an article saying, "Whether it is from The increase can still be seen from the value of the currency itself. There is a bubble in the price of Bitcoin. This is an issue that needs no discussion." Data show that in the past 2017, Bitcoin has skyrocketed and plummeted: within a year, the price skyrocketed by about 20 times, and in one day It fell more than 40% within the period.

Indeed, Bitcoin has risks. However, blockchain with richer connotations obviously still has greater room for development.

Last night, screenshots of Xu Xiaoping, founder of ZhenFund, encouraging the embrace of the blockchain revolution in an internal group were posted online. In his view, the blockchain revolution has indeed arrived. “I strongly encourage everyone internally to embrace the blockchain revolution and learn blockchain technology. This is my understanding after long-term observation and thinking. I feel the responsibility to tell our entrepreneurs. I don’t want my understanding of blockchain The views have been misunderstood as views on ICO."

However, in the context of the collective entry of Internet companies and investment institutions, the government will definitely take measures.

Recently, the U.S. Securities and Exchange Commission (SEC) has expressed concerns about this and shelved the proposal of two U.S. companies to launch a Bitcoin exchange-traded fund (ETF).

In fact, this is only a matter of time. Because the "three-go" feature of blockchain is inherently contradictory to government centralization.

『二』What is blockchain? Blockchain is virtual currency

Let me tell you about blockchain in layman’s terms, no. Do you need to use any advanced professional terminology? Because that is too difficult to understand. Let me give you an analogy to make sure you understand it at a glance.

Chinese mahjong can be understood as blockchain. If the four of you ABCD are going to play mahjong, who will say hello? If A greets, then A is the initiator of this block. A is responsible for finding the mahjong parlor. Organizer A can invite BCD, or B can invite C or C can invite D. It doesn't matter.

abcd gathered in a mahjong parlor and started playing mahjong. The process of shuffling the cards in the mahjong machine, drawing cards, and playing cards by abcd can be understood as a mining stage similar to Bitcoin in the blockchain.

Everyone has different cards, which is equivalent to the algorithm in the block, but there is a goal, and they are all for the purpose of cheating. Among them, A cheated, and bcd said nothing. , everyone knows at a glance that A has won. This is called the consensus mechanism in the blockchain.

A is messing up. After A knocks down the mahjong, bcd all know how A got confused and remember it in their hearts. If A wins 10 yuan, and both Ab and CD know that A wins 10 yuan, this is called district. Distributed accounting in the blockchain.

Everyone who plays mahjong knows what mahjong arrangement can be used, and everyone also knows what cards can be doubled, so this can be understood as a smart contract in the blockchain.

Everyone knows the final winning card of A after A is knocked down. No one can tamper with this result because everyone is watching it. This can be understood as the immutability of the blockchain. sex.

After A announced that he was cheating, everyone did not go to another person, such as E, F, G... to verify. The same was true after B won... no regulatory agency can control it They all manage themselves. This is the decentralization in the blockchain.

By analogy, the four buddies abcd played mahjong for a day, and abcd recorded the winning and losing of each game, no matter what method they used, whether it was brain memory, video recording, or notes. Well, the more they fight, the more they can reflect the immutability, decentralization, distributed accounting, and consensus of the blockchain...

At this point, you Now you basically understand what blockchain is, isn’t it very simple?

The second question is that blockchain is not a virtual currency. Virtual currency is just a part of blockchain technology.

Many people think that virtual currency is the blockchain and Bitcoin is the blockchain. This is actually wrong. It’s just that the fame of Bitcoin has brought blockchain into the public eye.

Satoshi Nakamoto invented Bitcoin using blockchain technology, and he defined Bitcoin as a peer-to-peer electronic cash system. The term "electronic cash" indicates that what Satoshi Nakamoto wanted to invent was not Not just a payment system, but a monetary system with an independent monetary philosophy.

Today’s hotly-hyped virtual currencies, as well as mining, are resisted by many departments and countries. The fundamental purpose is not to waste resources, electricity, etc., but because people with blockchain technology Virtual currency has subverted traditional finance and can easily cause the collapse of traditional finance. I have talked about this in my previous Q&A, so I won’t go into details here.

It can be said that Satoshi Nakamoto and the Bitcoin he invented are the pioneers of the blockchain. It was Satoshi Nakamoto who brought blockchain technology into everyone’s field of vision. Blockchain technology is still widely used in finance, medical care, service industry, big data security...

Let’s talk about this big data. As we all know, the recent Didi incident due to big data security The impact is still quite large. If decentralization in blockchain technology is used, personal data can be obtained and saved through the blockchain. How can there be data leakage? In today's society, with the advancement of science and technology, as long as it isIf you use your mobile phone to connect to the Internet, you have no data security. Your personal information has already been leaked completely, so blockchain technology is an inevitable trend of social progress.

Let’s talk about blockchain. I hope you can learn something from it. You can also pay more attention to blockchain technology and improve your cognitive level. (Personally coded by hand)

Blockchain is a distributed storage solution.

Virtual currency is a supporting reward mechanism to promote this plan.

The blockchain is decentralized, so there will be no IDC computer room or centralized data center. The storage of all data is theoretically fragmented. This requires a reward to attract others to join the project, and this reward is virtual currency.

In theory, blockchain can form a dynamically stable and decentralized cloud-like computing resource provision channel.

Bitcoin is the earliest blockchain application, while Ethereum is a second-generation blockchain that can support on-chain applications. The hardware resources required for these applications are provided by miners, so they must be paid Miners pay a certain fee, and the common currency used for this fee is Ethereum.

The biggest attraction of blockchain is decentralization. In theory, applications on the chain will not disappear. No cloud containers will be lost, no data centers will be blown away by typhoons, and there will be no An organization can decide whether it stays or goes.

However, the reality is that there are still a lot of problems in on-chain applications, such as high latency, imperfect infrastructure, the reward-based miner attraction mechanism has not accelerated the on-chain speed as expected, and the virtual currency has prospered alone. Centralization returns to centralized exchanges, and other issues. There is also the inflow of black money, which is making this emerging industry full of uncertainty.

But from a technical perspective, blockchain technology is indeed the next generation of computer application technology.

Blockchain is a technology, a distributed and decentralized technology that can be applied to storage. Blockchain is not a virtual currency. Virtual currency is just a digital currency made using blockchain technology. Now, for example, the relationship between blockchain and digital currency is like, for example, if you build a dapp application mall on a certain chain, then you A token related to this mall can be issued.

The real connection between blockchain and virtual currency

What we are pursuing now is the application of blockchain technology. You develop a public chain and build many shopping malls, finance, defi, real estate, and tourism on this public chain. Such a dapp, this public chain has value, and then the tokens issued by this public chain have value, just like the current Ethereum, pi network

There are too many on the Internet now The so-called "blockchain digital currency", when we look at virtual currency, we look at what problems the public chain it is on can solve and what value it has, rather than blindly hype it. When it comes to blockchainIt’s the underlying technology. I think I only know the surface of blockchain.

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Author: Leng Leng's point of view

Block Chain is a technology, and virtual currencies like Bitcoin are products of applications on the blockchain. There are many video explanations on my homepage.

Blockchain is a technology, and virtual currency is a product produced by applying blockchain technology.

Bitcoin brought out blockchain technology, making people who don’t know why think that Bitcoin is equivalent to blockchain.

What is blockchain?

Every computer (mobile phone) is a block, which is connected through the Internet to form a blockchain.

Different from the traditional Internet, for example, when playing Douyin, each of us requests the Douyin server, and the Douyin server gives us the video. Everyone who plays Douyin cannot do without the Douyin server, and the Douyin server is our center. There is no center in the blockchain. Everyone (each block) is a server. When a block generates new content, everyone will be notified and everyone will save the new content to their own server. Each block saves The content is the same. If a new user (block) joins, it needs to synchronize the data on the blockchain and update the data to its own server first.

The advantage of blockchain is that it can ensure data security and cannot change the data. It is useless if you change one or two blocks of data. Once the blockchain data is synchronized, it will become the correct value. The traditional central server will not work. Hackers invaded the Douyin server, and all users suffered.

Disadvantages of blockchain are low efficiency. The blockchain requires synchronization of blockchain data in each block. New changes on the blockchain require simultaneous updates from users on the entire blockchain network, which is inefficient.

Blockchain is a computer model of distributed data storage, point-to-point transmission, and consensus mechanism. In simple terms, blockchain is a decentralized database. How to use this technology? Is the value reflected? Under the consensus mechanism, a technology such as blockchain is formed to give a specific token, which is BTC

Blockchain is a new Internet application technology that uses distributed storage, passwords The application of emerging technologies such as science, smart contracts, and consensus algorithms can be said to be a new data transmission method that innovates existing Internet protocols. At present, blockchain technology is constantly iterating

1. Blockchain 1.0, symbolizing the birth of Bitcoin; only with Bitcoin can the development of blockchain technology officially occur

2 , Blockchain 2.0, Ethereum decentralized application platform, Ethereum introduces the application of smart contracts, which represents the beginning of a new era of blockchain technology; now everyone can create projects on Ethereum, and in recent years Many good projects have been launched

3. Blockchain 3.0, DeFi opens the era of decentralized finance. DeFi projects use smart contract technology to realize various functions of traditional financial institutions, such as derivatives, lending, trading, financial management, and asset management. , and insurance, etc. There are currently mixed reviews for DEFI, which will take time to verify

Although the blockchain originated from Bitcoin, just like the first computer when the Internet first appeared, Bitcoin is mainly used by miners. Mining rewards

Blockchain is a decentralized accounting method. Virtual currency is a product of the blockchain.

『三』Blockchain 100 - Zhou Kaiyu: Can blockchain credit investigation innovation break industry credit barriers

Mr. Zhou Kaiyu, CEO of Zhenxing Technology

At present, credit reporting has become a key part of the credit system and forms an important support in the operation of the modern financial system. There are certain difficulties and pain points in traditional credit reporting, but the decentralized and non-tamperable characteristics of blockchain will change in one fell swoop the issues of insufficient data privacy protection involved in the credit reporting process and consensus trust issues in the data sharing transaction process.

Mr. Zhou Kaiyu elaborated on the advantages of the combination of blockchain and credit reporting, and described the development status of the blockchain credit reporting industry at the legal level. At the same time, he expressed his views on the future development of Zhenxing Technology and the future direction of blockchain innovation.

Zhenxing Technology is positioned as a blockchain value ecological enterprise and is committed to building the next generation of trusted application service basic network based on blockchain. In June 2017, the company established a stable team structure and carried out related technical matters. From July to August, the first version of Zhenxing’s technical white paper was completed. At present, Zhenxing has implemented the first version of the system and has also started to provide related services in terms of blockchain-based identity verification. In the later stage, further development based on the second version of the credit evaluation system will be carried out.

In terms of ecological construction in the future, Mr. Zhou Kaiyu said that the blockchain credit industry has both value and opportunity. He hopes that industry partners with some high-quality resources on the B-side in the early stage can jointly expand services and eventually achieve A large number of users gather on the C-side, creating an ecological environment for high-credit preference transaction customers. In terms of the company's development plan, Zhenxing will break the inherent thinking of traditional blockchain anonymous verification, build a decentralized strong identity verification basic network, and integrate a trusted Internet service ecosystem.

The original intention of choosing a project that combines credit reporting with blockchain

“Choose blockchain to develop because it has a community-based approach that maintains the stability of the entire system. Consensus reward, consensus reward is a process of social value redistribution. In the process of social value redistribution, a value effect is formed in which the wool comes out of the pig and is paid by a third party. While achieving credit value, it can It is a means to encourage everyone to maintain high credit." Mr. Zhou Kaiyu said.

According to Mr. Zhou Kaiyu, in the traditional credit reporting process, data is processed in a traditional centralized way. The data exists on a centralized platform, but it is difficult to verify the security of user data. The issue of personal privacy data has attracted attention from society, government, enterprises and other levels. Blockchain will form a combination with blockchain through the credit alliance.

At the same time, the Block Hall Chain can combine some personal security mechanisms to achieve comprehensive and strict protection of personal privacy data and complete credit reporting services with authorized attributes. Zhenxing’s credit reporting service combines the advantages of blockchain, using personal data and individuals themselves to provide diversified credit reporting services through data services.

What are the advantages of the combination of blockchain and credit reporting?

When it comes to the combination of blockchain and credit reporting, its main core lies in the data level, since credit reporting uses a large amount of user data. In a decentralized system like blockchain, data needs to be maintained jointly by everyone. It is difficult for anyone to change the data. This can clearly guarantee the security of user data. Any access to data requires user authorization. occur.

Regarding the current legal status of blockchain credit reporting, Mr. Zhou Kaiyu introduced, “In terms of credit reporting, the country has many management regulations to regulate the processing of customer data by enterprises. Blockchain + reporting In terms of information, it is a very good technical method." In his view, “Blockchain + credit reporting has become the only basic technology that can fully meet all requirements in terms of privacy protection when most technologies cannot meet the needs of credit reporting.”
< br />What are the options for future blockchain innovation directions?

Mr. Zhou Kaiyu said that the development of blockchain is still in an early stage, and there is huge room for future innovation in blockchain. Currently, we are optimistic about the direction of innovation, such as asset digitization. Asset digitization will be a relatively long process, and various applications will continue to emerge during development. In terms of technological innovation, blockchain still has a lot of room, and more attempts are being made in new directions of upgrading and balancing.

Zhenxing hopes to build a value exchange ecology with high performance value, and hopes that under its nourishment, everyone will be happy to maintain their personal credit, and everyone will be able to participate in the credit transaction process. gain from it. The future development of Wuxiaokai will be based on the core concept of maintaining high credibility and combating dishonest people.

『四』What is blockchain + credit reporting?

my country’s credit reporting industry is mainly corporate credit reporting, personal credit reporting needs to be developed, and the overall market prospect is broad. my country's corporate credit reporting developed earlier and the market is relatively mature. By the end of 2016, there were approximately 137 corporate credit reporting agencies in my country that had completed registration. Personal credit reporting has not yet been operated in a market-oriented manner, and licenses have not yet been issued. Tencent Credit Reporting, Sesame Credit, and QianEight units, including Hai Credit Information, Lakala Credit Information, China Zhicheng Credit Information, China Chengxin Credit Information, Pengyuan Credit Information and Huadao Credit Information, participated in the personal credit investigation pilot organized by the central bank. Private personal credit reporting agencies can indirectly participate in the personal credit reporting market by cooperating with banks and other financial institutions, but they cannot directly issue personal credit reporting reports. Personal credit reporting reports can only be obtained through the central bank's credit reporting system. As of the end of June 2016, the Central Bank's Credit Reference Center had included 21.2 million companies and other organizations and more than 900 million natural persons, of which only 5.77 million households and 410 million natural persons had credit records. The data of global credit giant Experian has covered 103 million companies and 890 million people around the world. Comparing the market demand and the scale of the credit reporting market in the United States, my country's credit reporting market has huge room for future development.

The emergence of blockchain technology has become a good medicine to solve the pain points of the credit reporting industry. Through the characteristics of true transparency and non-tampering, blockchain technology can solve the problems of trust and data sharing between credit reporting agencies, thereby solving problems such as data islands and incomplete data. By establishing an alliance chain, first of all, the problem of data confirmation can be solved be completely resolved. In a consortium chain system, relevant units in the chain such as credit reporting agencies, users, government departments, and financial institutions can all join in, and different access rights can be designed to ensure data ownership while opening up information sharing and It can protect data security from being stolen and leaked.

On this basis, the channels for credit reporting agencies to obtain data have been greatly broadened, which can save the cost of data collection; at the same time, collaboration between different agencies has become smoother, reducing collaboration costs and communication costs. Credit reporting agencies can invest the various costs saved in other links to improve the overall quality of products.

The Xueshuo Innovation Blockchain Technology Workstation under Lianqiao Education Online is the only “blockchain technology workstation” approved by the “Smart Learning Workshop 2020- Xueshuo Innovation Workstation” carried out by the School Planning and Construction Development Center of the Ministry of Education of China. "Technical Professional" pilot workstation. The professional position is based on providing students with diversified growth paths, promoting the reform of the training model integrating professional degree research, production, and research, and building an applied and compound talent training system.

『Wu』Why blockchain technology is most suitable for application in the financial industry

Blockchain is a revolutionary underlying technology. Its initial function is accounting. As a distributed The general ledger can solve the credit issues, notarization issues, audit issues, rights confirmation issues, etc. of the ledger, and can solve the digitalization needs of physical assets and other issues. Blockchain application scenarios have three major characteristics: "new database, multiple business entities, and no mutual trust". The financial industry has the characteristics of low trust among participants and high requirements for the security and completeness of transaction records, which is very consistent with the application characteristics of blockchain technology. Therefore, the financial services industry currently has the most projects and scenarios where blockchain technology has been implemented. One of the richest industries, such as supply chain finance, asset securitization, credit reporting and risk control, etc. Blockchain technology in the financial field,It can not only reform financial infrastructure, but also play a synergistic role in supervision, transactions, credit reporting, virtual currency and other scenarios. For example, in the traditional financial environment, supervision is managed through the reporting of data by various business organizations, which will cause many disadvantages, such as "black box" operations of enterprises and delayed decision-making. However, under blockchain finance, through information transparency and penetration, and some advantages of regional centralization, regulatory authorities can grasp all business information at the first time. At present, Internet financial companies such as Fox Financial Services are vigorously developing blockchain technology. Through the decentralization and distributed storage of blockchain technology, they can enhance user information management and increase supervision efficiency.

『Lu』 Times have changed, what is the core of the blockchain economy?

Since the birth of Bitcoin, more than 1,600 blockchains have appeared around the world. A kind of virtual currency, a huge industrial chain ecosystem has been formed around the generation, storage and transaction of virtual currency. But overall, the industry is still in its infancy and is still far from the real value application area.

The core of the blockchain economy lies in the reconstruction of business logic and organizational form, so it is necessary to obtain application examples in multiple industries to demonstrate its value. This article will explore the business models of blockchain applications in various industries from the perspective of combining blockchain with industry needs.

First of all, the core of blockchain is to solve the problem of credit:

Credit is the foundation of all commercial activities and finance. The United States has implemented trusted identification since 2011, while China has implemented a real-name system to achieve supervised information dissemination. The significance of blockchain is that it has established decentralized trust from a technical level for the first time and realized a completely distributed credit system.

Secondly, blockchain solves the problem of value exchange:

Traditional networks can realize point-to-point transmission of information, but cannot realize point-to-point transmission of value. Because information is allowed to be copied, and value must be authentic and unique, it is necessary to rely on a centralized organization to achieve value transfer. Blockchain perfectly solves this problem and provides a method to realize point-to-point transfer of value. During the value transfer process, accounting is realized by the network without relying on a centralized institution. Therefore, blockchain is expected to become the infrastructure for building new finance and the cornerstone of the future value Internet.

Application of blockchain

Currently, there are two main modes of blockchain application:

1) Native type Blockchain applications: directly based on decentralized blockchain technology, realizing applications such as value transfer and transactions, such as digital currency;

2) "Blockchain+" model: combining traditional scenarios with Combined with the underlying protocol of the blockchain to improve efficiency and reduce costs. It is expected that the application of blockchain in various industries will be dominated by the second model.

Blockchain has five core attributes, namely: transaction attributes (value attributes), certificate attributes, trust attributes, intelligence attributes, and traceability attributes. The above core attributes are combined with the needs of the industry to solve the industry's pain points and become a business model for blockchain applications in various industries.

Blockchain + Bank

1. Cross-border payment

Cross-border payment is a pain point that has long plagued the banking industry. Traditional cross-border payment methods include two major categories: one is online payment, including electronic account payment and international credit card payment, which is suitable for small retail amounts; the other is the bank remittance model, which is suitable for large-amount transactions; both have payment cycles Long, high fees, low transaction transparency and other issues. Especially in recent years, with the rise of cross-border e-commerce, convenient, fast, safe and low-cost cross-border payment has become an urgent need for the industry.

The role of blockchain:

The characteristics of blockchain are deintermediation and open and transparent transactions. There is no third-party payment institution to join, which shortens the payment cycle, reduces costs, and increases Transaction Transparency. For example, in December 2017, China Merchants Bank teamed up with Wing Lung Bank and Wing Lung Shenzhen Branch to successfully implement cross-border RMB remittances between the three parties using blockchain technology. Its clearing process is safe, efficient and fast, greatly improving customer experience.

2. 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 role of blockchain:

Blockchain introduces consensus mechanism, existence proof, non-tampering, traceability and other features into supply chain finance, without the need for a third-party credit enhancement agency Identify the authenticity of various relevant vouchers in the supply chain, thereby reducing financing costs and shortening the financing cycle. For example, in April 2017, the listed company Yijian and IBM China Research jointly launched the blockchain supply chain financial service system "Yijian Block". The system focuses on pharmaceutical scenarios and currently has more than 30 pharmaceutical distribution companies. Successfully registered in the "Yijian Block", as of the end of July, the number of transactions had been close to 8,000, and the total investment amount exceeded 100 million yuan.

3. Digital Bills

The pain point of the digital bill industry lies in the long-standing problems of "false bills" and "one vote selling more than one", which have brought challenges to the bill financing business of the banking industry. risk.

The role of blockchain:

The existence proof and non-tampering characteristics of blockchain effectively solve the problem of false digital bills; at the same time, blockchain solves the problem of double Spending money can avoid "one ticket selling too many". For example, Shenzhen Blockchain Financial Services Co., Ltd. issues bill chain products to provide bill financing services based on blockchain to solve the bill financing needs of small, medium and micro enterprises. Cooperative bank packageIncluding Ganzhou Bank, Guiyang Bank, Suzhou Bank, Shizuishan Bank, Langfang Bank, Wuhai Bank, Jilin Jiutai Rural Commercial Bank, Yaodu Rural Commercial Bank, Shenzhen Rural Industrial Bank, Weifang Bank, Zhongyuan Bank, etc. In addition, Zheshang Bank, JD Finance, Hang Seng Electronics, HNA, etc. are also verifying blockchain digital bill services.

Blockchain + Securities

1. Asset Securitization

Asset securitization uses future income as a guarantee to obtain current financing. The pain points in this field are: there are many participating entities, many operating links, low transaction transparency, information asymmetry, and the authenticity of the underlying assets cannot be guaranteed.

The role of blockchain:

Blockchain introduces attributes such as existence proof, non-tamperability, and consensus mechanism for asset securitization, which can monitor the true situation of assets in real time and solve the problem of It solves the problem of trust of all parties in the transaction chain in the underlying assets. Various assets such as equity, bonds, bills, income certificates, warehouse receipts, etc. can be integrated into the blockchain and become digital assets on the chain, improving asset circulation efficiency and reducing costs. For example, in May 2017, Internet Finance and partners including Baiqian Leasing and Huaneng Trust jointly issued an asset securitization ABS project supported by blockchain technology, with an issuance scale of 424 million yuan.

Blockchain + Insurance

1. Insurance business

The insurance industry has problems such as information asymmetry and lack of trust between customers and insurance institutions: Users It is difficult to choose an insurance product that suits you, and insurance institutions face the risk of insurance fraud.

The role of blockchain:

The decentralized, open, transparent, and traceable characteristics of blockchain establish a good communication channel between insurance institutions and users; insurance subject matter Information is managed uniformly on the blockchain and cannot be tampered with, helping insurance institutions avoid the risk of insurance fraud; at the same time, smart contracts can improve work efficiency and reduce costs. For example, French insurance giant AXA is using the Ethereum public blockchain to provide automated flight delay compensation for air travelers. If the flight is delayed for more than 2 hours, the "smart contract" insurance product will automatically pay claims to passengers.

2. Credit information management

The pain point in this field is that credit information agencies have limited data collection channels and lack of data sharing, making it difficult to accurately characterize the credit status of individuals or institutions; in addition, There is also the issue of how to protect user privacy during the data collection process.

The role of blockchain:

The blockchain has the characteristics of trustlessness, consensus, and non-tampering. At the technical level, it ensures that effective protection of user privacy can be achieved. Limited, controllable credit data sharing and verification. For example, Ping An’s blockchain credit reporting business is now online. In addition, domestic startups such as Shanghai Juzhen, LinkEye, Bubi Blockchain, etc. are also conducting joint credit reporting and security reporting.Exploration in aspects such as full deposit certificates.

As a basic technology, blockchain has great application value in many industries with distributed processing, peer-to-peer transactions, and rapid establishment of trust relationships. Its core is to solve the credit problem and realize the point-to-point transmission of value. Therefore, it is considered to be the cornerstone of the future value Internet.

The core of the blockchain business model is to use the innovative attributes introduced by the blockchain and combine it with traditional industry applications to realize the reconstruction of business logic in order to create new application scenarios or improve efficiency. cut costs.

Blockchain will also extend to all areas of social life: Blockchain solves problems such as the management, transaction, and transfer of digital assets, so it will play an important role in the wave of asset digitization, such as supply Applications such as chain management, data services, asset management, public services, and the Internet of Things are gradually being implemented in various fields, and "blockchain+" is becoming a reality.

『撒』 In addition to being used in virtual currencies, what other aspects can blockchain technology be applied to?

In addition to being used in virtual currencies, blockchain technology can also be used in It can be used in the financial field, digital currency, securities transactions, fund management, customer credit reporting and anti-fraud, digital points, etc. The usage rate of blockchain in our country is still relatively high at present. Perhaps what we have heard the most before is that it is used in virtual currency.

In summary, in today’s society, blockchain technology has provided us with a wide range of help, and we must make good use of this Technology, use it in various related industries to make our industry develop faster and ensure the interests of our people.

『8』What are the main models used in blockchain credit supervision?

The main models used in blockchain credit supervision are:
1. Using blocks Chain technology connects existing credit databases to each other and enables credit data transactions between various institutions.
2. It is to build a distributed database based on blockchain technology as the underlying framework and establish a new credit information ecosystem.

『九』 A brief discussion on several major applications of blockchain and which ones are pitfalls

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.

The Internet is an information network, with 0s and 1s flowing in it. Blockchain is a value network, and its role is to transmit value, unlike the Internet for data transmission.

Speaking of value transfer, there is a very simple scenario, such as payment. I have 100 yuan in my hand and I want to transfer it to the group. I can do this through WeChat red envelope orOr WeChat transfer method, in this transaction process, the participation of a third party is required, and the transmission method of the blockchain is point-to-point transmission, which does not require any intermediate node. This is a very big problem between the blockchain and our existing architecture. a difference.

When it comes to peer-to-peer payments, many people will think of Bitcoin, because most people know blockchain from Bitcoin. What is the difference between blockchain and Bitcoin?

Blockchain is the technology behind Bitcoin; blockchain is a basic technical architecture that designs and implements an autonomous system with multi-party participation through a specific data structure and consensus algorithm.

The specific data structure is actually the name blockchain itself, that is, its data is placed in data blocks one by one, and then these data blocks are connected and implemented using a chain. "Consensus algorithm" is a very important concept in blockchain. Without synchronic algorithm, there would be no meaning of blockchain.

Introduction to Bubi Blockchain

Bubi Blockchain has been focusing on the R&D and innovation of blockchain technology and products since its establishment, and has a number of core technologies. It has made substantial innovations in many aspects and formed a number of core technical achievements, such as: mathematically provable distributed consensus technology, fast large-scale ledger access technology, multi-chain general ledger technology that supports business expansion, and heterogeneous ledger technology. Construct interconnection technology between 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.

Having said that, let’s analyze the difference between blockchain and Bitcoin?

1. Essential difference. For the world, Bitcoin is a digital currency based on cryptography, while blockchain, as we just said, is a value transfer protocol. There is an essential difference between the two, because one is a digital currency. , one is a value transfer protocol.

2. Algorithm. Bitcoin's consensus algorithm is based on a working algorithm called proof of work, POW. There are many different consensus algorithms in the blockchain. It can use either the Bitcoin POW algorithm, the POS algorithm, or the DPS algorithm.

3. Transaction speed. Bitcoin is limited to a maximum of seven transactions per second. Please note that what is mentioned here is the maximum and not the average, because this is a very strict definition. For blockchain, in fact, the number of transactions per second can beTo reach tens of thousands of times or more, so this is also a major difference between blockchain and Bitcoin. Because many people will be confused and say that the transaction speed of the blockchain is seven transactions per second. This is wrong. This is a limitation of Bitcoin. The blockchain can reach very high speeds based on its different consensus algorithms and linking methods. Transaction speed.

4. Link form. Bitcoin is a blockchain based on the Internet, which means we call it a public chain. The blockchain can be in the form of a public chain, a private chain, or a consortium chain.

5. Limitations. It is recommended that everyone not touch some digital currencies related to blockchain. What's the reason? Bitcoin is a digital currency. Although it has very good and different characteristics, it does not comply with financial supervision. In other words, these 21 million Bitcoins were issued without national authorization and without national credit as a multiple. was released below. The blockchain also has some limitations. Although it is just a protocol and a technology, it is still a new technology in its infancy.

To summarize, blockchain is a relatively low-level protocol and a technical infrastructure, on which there are various consensus algorithms. If the blockchain is 1, the consensus algorithm may be 10 to 20, but the applications based on it may be one thousand or two thousand, or more. In other words, Bitcoin is only one of many blockchain applications. A realization. Therefore, Bitcoin and blockchain cannot be equated. Bitcoin is only a very elementary implementation of blockchain.

What can blockchain do? Blockchain problem? In the bill market, digital bills based on blockchain technology can become a safer, smarter, and more convenient bill form. Point-to-point transactions realized with the help of blockchain can break the existing functions of bill intermediaries and realize the disintermediation of bill value transfer; the construction and data storage of digital bill systems do not require a central server, eliminating the need for the development of central applications and access systems. cost, which reduces the maintenance and optimization costs of the system under the traditional model, and reduces the risks caused by system centralization; based on the non-tamperability of information on the blockchain, once the transaction is completed, there will be no default, thereby avoiding "one Behaviors such as "selling too many tickets" and out-of-synchronization of payment and endorsement effectively prevent risks in the bill market. The securities trading market is also an area where blockchain technology has great potential. The current traditional securities trading model has the shortcomings of long transaction processes, low transaction efficiency, and high comprehensive costs. In addition, there are strong intermediaries and regulatory agencies, and the rights of financial consumers are often not protected. Applying blockchain technology, buyers and sellers can be directly matched through smart contracts, and the efficiency of transaction execution can be greatly improved. Settlement and delivery can be automatically realized through a distributed digital registration system. Since the data entered into the block is irreversible and can be copied to each data block within a short period of time, the information entered into the blockchain actually has a publicity effect, so the occurrence of the transaction and the confirmation of ownership areThere will be no dispute.

What can blockchain do? Blockchain problem? Although there is no mature underlying blockchain technology platform solution currently, technical problems such as capacity scalability, privacy protection, inability to settle on a net basis, and non-recourse after the event also need to be solved, and large-scale application of blockchain Technology also requires redesigning IT architecture and reengineering business processes, but these are only technical issues. The real test of blockchain technology taking root and growing in the financial field is the ontology of regulatory agencies and financial institutions. Will the inherent "deregulation" and "decentralization" characteristics of blockchain make market entities have no motivation to drive technology? Innovation. However, since the blockchain is a technology based on mathematical algorithms, the establishment of a trust relationship between transaction parties does not require the use of intermediaries or authoritative centers at all, and the cost of establishing a trust relationship is almost zero (when the blockchain financial infrastructure and ancillary infrastructure are established (under the premise), and the blockchain code is open source and open, without geographical restrictions, and the network pattern is distributed and interconnected, laying a technical foundation for the establishment and development of inclusive finance and shared finance in the future, and creating material conditions for global financial integration and unification. From this point of view alone, blockchain technology will surely establish a core position in future financial development, and it will rely on and complement each other to win the future.

『Shi』What is blockchain technology? What is the relationship between integrity coins and blockchain?

First, what is blockchain?

Blockchain is a technical system that is jointly maintained by multiple parties and uses cryptography to ensure transmission and access security. It can achieve consistent data storage, cannot be tampered with, and cannot be repudiated.

Before Integrity Coin, Bitcoin was the first successful application of blockchain technology.

Trust Coin is essentially a ledger for multiple people to keep accounts. Like Bitcoin, it is a digital asset and a virtual currency.

For example, if A has 5 integrity coins and transfers money to B, he only needs to record the transaction in the ledger and the transfer will be successful. Because distributed accounting under blockchain technology enables everyone’s accounts to be exactly the same. With such a powerful account book, we do not need WeChat, Alipay, banks and other third-party institutions to help us keep accounts. Each of us can participate in the accounting work.

Cryptography ensures that as long as we do not lose our keys, others cannot forge our transactions and transfer our digital assets.

Second, what is the role of blockchain?

Bitcoin is the first proven successful blockchain application, teaching the world how to transfer value without trusting a third party. Blockchain technology can effectively remove the trust problem of information asymmetry.

How does blockchain technology do it?

We know that people do not trust each other. During transactions, third-party institutions are often required as intermediary guarantees. The reason why blockchain can reconstruct the previous trust between people essentially relies on the way each transaction is recorded by everyone.It is transparent and verifiable, difficult to tamper with, and cannot be repudiated.

There is no need for a centralized administrator, banks, Alipay, or WeChat as intermediaries to realize value transfer efficiently.

Third, what is integrity coin?

Integrity Coin is a digital asset based on blockchain technology, just like a game; this game is very special. Under the rules of district centralization, there is no leader and no one has the final say. There is no referee; so everyone is a referee and the weight is the same, so information supervision can be achieved and the transparency of information can be ensured.

The reward mechanism generated in the process of continuous transactions is the integrity coin, which is based on a distributed ledger jointly maintained by a community. Regardless of whether there are changes to the ledger, everyone in the community must be notified.

The process of obtaining integrity coins through continuous exchanges is called mining

Fourth, what is the relationship between virtual currency and blockchain?

Essentially, digital currencies such as Bitcoin, Integrity Coin, Litecoin, etc. are virtual tokens generated under blockchain technology. Without the existence of blockchain technology, there would be no these digital assets.