区块链各种币,区块链的币种

区块链各种币是指在区块链技术应用中，由特定的货币组成的一种虚拟货币，是一种新型的支付系统，它可以在全球范围内实现跨境支付，也可以进行无线支付。目前，区块链技术应用的币种有比特币、以太坊、莱特币、柚子币等。本文将介绍区块链各种币的三种关键词：比特币、以太坊和莱特币。

比特币：

比特币是一种去中心化的电子货币，它是由一群程序员在2008年创造出来的，它是一种基于区块链技术的数字货币，它不受任何机构的监管，也不受任何国家的管辖。比特币的特点是它的发行量有限，它的发行量最多只能到达2100万个，而且它的交易是安全可靠的，交易过程中不会有任何中间机构的参与，这也是它的优势之一。

以太坊：

以太坊是一种去中心化的、基于区块链技术的数字货币，它是由程序员Vitalik Buterin在2015年发明的，它的特点是它的发行量是无限的，它的交易是安全可靠的，而且它可以支持智能合约，这也是它的优势之一。以太坊的发展迅速，它的价格也在不断上涨，它已经成为区块链技术应用中的一个重要的货币。

莱特币：

莱特币是一种去中心化的、基于区块链技术的数字货币，它是由程序员Charlie Lee在2011年发明的，它的特点是它的发行量是有限的，它的发行量最多只能到达8400万个，而且它的交易是安全可靠的，交易过程中不会有任何中间机构的参与，这也是它的优势之一。莱特币的发展迅速，它的价格也在不断上涨，它已经成为区块链技术应用中的一个重要的货币。

以上就是区块链各种币的三种关键词：比特币、以太坊和莱特币的介绍，他们都是基于区块链技术的数字货币，有着不同的发行量和安全可靠的交易特点，已经成为区块链技术应用中的重要货币。

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1. The value and significance of Bitcoin

The value of Bitcoin:

1. As a virtual currency, Bitcoin has a limited quantity. But it can be exchanged into the currencies of most countries, which is the current maximum value of Bitcoin.

2. Bitcoin can be used to recharge and purchase equipment in the game. In the virtual world, the value of Bitcoin is greater than real currency.

The significance of Bitcoin:

1. The designer’s original intention was to build a free, non-centered and orderly world of currency transactions. The emergence of Bitcoin realized the designer’s intention idea.

2. The time used for Bitcoin calculations is infinite, but human life is limited, which maintains the long-term and eternal development of Bitcoin to a certain extent.

3. Cryptotechnology ensures the security of Bitcoin and is also well utilized and packaged.

2. What exactly is blockchain and what are its uses

Recently, the word "blockchain" has appeared very frequently on the Internet. It can be seen that recently everyone is concerned about The word "blockchain" is very interesting. So what is "blockchain", how to explain "blockchain", and what kind of chain is "blockchain"?

If we want to know what “blockchain” is, we must first start with Satoshi Nakamoto.

In November 2008, Satoshi Nakamoto posted a research report on a secret cryptography review group, describing his new idea for electronic currency-Satoshi Nakamoto proposed : "I believe there is a currency that doesn't rely on credit, and I can't stop myself from thinking about it." Bitcoin was born.

Although we still don’t know who Satoshi Nakamoto is, we all know the famous Bitcoin and the recently popular word “blockchain”.

In professional terms, blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc.

In the original English version of the Bitcoin white paper [2], the word blockchain does not actually appear, but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper [3], chain of blocks was translated into blockchain.

What does it mean in human terms? In layman's terms, blockchain is a decentralized distributed ledger database.

Decentralization means removing the original data center.

Here is an example of decentralization: Alibaba’s servers support Alibaba’s daily data operations, including the Double Eleven that just passed. We were able to smoothly carry out flash sales of goods at zero o’clock., largely due to the support of Alibaba servers.

All data generated by Alibaba’s daily activities are recorded on the server. So what will happen if Alibaba’s server encounters an accident? (For example, Alibaba's server was hit by a meteorite, causing the server to be damaged)

After the server is paralyzed, Alibaba's data will naturally be unable to be restored in time, which will result in Alibaba being unable to maintain daily operations in the short term. operations.

However, after adopting blockchain technology, a piece of data generated by Alibaba due to daily business will not only be recorded on Alibaba’s servers, but also on various servers around the world such as the Internet and Google. , In this way, even if Alibaba's servers encounter an accident, it will still not affect Alibaba's operation. The data generated by Alibaba's daily activities will still be recorded on various servers around the world. This is the advantage and benefit brought by blockchain technology.

In other words, Ali's data was only recorded in Ali's server, and Ali's server was the center. Now every server in the world is synchronously recording the business that Ali has done, and Ali's server is the center. It is no longer the only center, this step achieves decentralization. The behavior of servers around the world recording Alibaba data simultaneously is called distributed accounting.

Now that we know what blockchain means, what kind of boundaries can blockchain bring to our lives? What fields may blockchain be used in in the future?

1. Blockchain technology is applied in the medical and health field. For example, Xiao Zhang’s family has a history of hereditary red-green color blindness. Xiao Zhang once went to Hospital A and had his red-green color blindness checked. Now Xiao Zhang is in City B and went to Hospital B for treatment. Now Hospital B can directly treat him in his own hospital. Xiao Zhang’s previous medical treatment status was found in the database, so Hospital B no longer needs to conduct repeated examinations on Xiao Zhang. This greatly saves medical resources for the hospital and saves medical expenses for repeated examinations for Xiao Zhang.

2. Blockchain technology is applied in the field of food safety. Nowadays, everyone is paying attention to food safety, and blockchain technology is applied to the field of food safety to carry out food traceability. First, we can label each vegetable and fruit with its own label, and then record the growth, maturity, pests and diseases of the vegetables and fruits in this label. The data in this tag can be simultaneously recorded in various data centers around the world through blockchain technology.

On the one hand, when people buy vegetables, they can directly check the growth status of the vegetables. On the other hand, when our country imports and exports vegetables, we can directly check the status of the imported and exported products. No more quarantine required.

3. What is the use of blockchain besides Bitcoin?

Virtual currency is not the only way out for blockchain. Let’s talk about a few already implemented and relatively common blockchain applications

Finance

In addition to the special application of Bitcoin, in the traditional financial industry, blockchain technology also has various opportunities to emerge. Identity authentication, financial transactions, payment and settlement, and supply chain finance all have their application scenarios.

Because of the non-tamperability of blockchain technology, the trust in the financial industry has been further enhanced. Participants in the chain can query each other's information without having to establish connections through a centralized system. This not only improves work efficiency, but also reduces risks.

Games

The traditional online game industry almost always connects all users together through a server-centered star network. The responsibilities of the server include running applications, transmitting data, saving data and other functions. With the continuous increase of users and the continuous iteration of versions, the pressure on the server and the cost of enterprise investment are increasing day by day.

The distributed computing of blockchain allows each client to undertake certain computing and storage tasks, which not only reduces the pressure on the server, but also further improves data security. .

Electronic Contracts

Traditional paper contracts have disadvantages such as difficulty in confirming the signing identity, easy tampering and loss, and difficulty in management. With the development of the Internet, electronic contracts have played an important role in meeting corporate needs to improve efficiency and reduce costs.

The addition of blockchain technology makes electronic contracts more secure and reliable. Taking the Fada Electronic Contract as an example, through the "Fa Chain" alliance that cooperates with Microsoft (China) and Onchain, important digital fingerprint information on the electronic contract such as the signing time, signing subject, and file hash value of the Fada Electronic Contract will be It is broadcast to the respective nodes of all members. Once all information is stored, no party can tamper with it. At the same time, the hash value information of the file is also simultaneously stored in the national authoritative electronic data forensic identification center, which fully meets the requirements for judicial storage of electronic evidence.

Copyright

Although people's awareness of copyright is constantly increasing, with the increasing number of electronic devices and increasingly convenient data transmission, pirated products still belong to the creators. A piece of heart disease. What worries the original author even more than piracy is the series of disputes caused by the inability to confirm that he is the original author.

The addition of blockchain makes copyright confirmation more convenient. After the author completes the creation, he can register and save the certificate on the blockchain platform. This kind of time-stamped, non-tamperable certification document can give the creator a higher voice.

Logistics

Nowadays, there are many well-known products that are adulterated or replaced with other items during transportation. Traditional anti-counterfeiting signs have frequently shown a sense of powerlessness in today's world where criminals' technologies are becoming more and more comprehensive.

There are now some large companies that have applied blockchain to logistics and supply chains. Not possible with a single nodeWith the technology of data modification, the process in every transportation link will be traceable. There are already cross-border logistics companies in China, which have used this technology to gradually realize the traceability of overseas commodities, traceability of international logistics and import declarations, traceability of domestic logistics and even traceability of production enterprises. Such an application will undoubtedly gradually increase consumer confidence and build brand authority.

I believe that in the future, this underlying technology will be used in more industries and scenarios.

4. What is blockchain, what is digital currency, and what are the uses of coins?

Blockchain is an important concept of Bitcoin and is essentially a decentralized database.
At the same time, as the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each data block contains information about a batch of Bitcoin network transactions. , used to verify the validity of its information (anti-counterfeiting) and generate the next block. Digital currency is an unregulated, digital currency that is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking Authority defines virtual currency as: a digital representation of value that is not issued by a central bank or authority and is not linked to a legal currency, but which, because it is accepted by the public, can be used as a means of payment or can be transferred, stored or traded electronically. .
The content of this article comes from: China Law Publishing House's "Complete Knowledge of Legal Life Common Sense Series"

5. What is the popular explanation of blockchain? You must know these five application scenarios of blockchain!

Recently, blockchain has become popular overnight, and everyone around is discussing blockchain.

So, is the blockchain the same as Bitcoin?

In fact, Bitcoin and blockchain are not the same thing.

Blockchain is the underlying technology of Bitcoin, but the first usage scenario after the birth of blockchain is Bitcoin.

Bitcoin is just a string of data in a computer. Compared with paper currency, it is also called a "virtual currency". To put it simply, you can understand that Bitcoin is just a string of numbers with cash value, similar to Q coins. In other words, Bitcoin has no actual value. Its current value is supported by the faith of currency speculators. If the faith is gone, the value of Bitcoin will collapse.

What is blockchain? What are the characteristics of blockchain technology?

Let’s first take a look, why is blockchain called blockchain?

Data is stored piece by piece, and the data stored piece by piece is called a block. Different blocks are linked to the previous block, which is called a blockchain.

For example:

On a certain day of a certain year, Lao Wang lent Xiao Wang 10,000 yuan, and Lao Wang told the newsEveryone around them posted their transfer records on their WeChat Moments, and everyone helped them testify to the existence of this transaction.

Lao Wang and Xiao Wang are two nodes. These two nodes generate transaction time, location, person and other information, and they are packaged to form a "block". Lao Wang’s friends are also nodes. These nodes jointly record the transaction status and details (blocks) of the two nodes, Lao Wang and Xiao Wang. These blocks are connected to form a blockchain.

Fundamentally, blockchain is a distributed ledger database.

What does distributed ledger mean?

Let’s take a look at the traditional accounting method.

The traditional accounting method is a centralized accounting method. For example, if Lao Wang lent 10,000 yuan to Xiao Wang, if Lao Wang did not tell the world about this money, then this amount would Only Lao Wang knows about the money transactions, Xiao Wang knows, God knows, and Earth knows. This accounting method is a centralized accounting method. This method has a very fatal shortcoming: what should I do if the other party does not acknowledge the account? In fact, in real life, in spontaneous private lending relationships, there is no evidence when the lending relationship occurs, resulting in many cases where the other party does not acknowledge the debt afterwards.

The accounting method adopted by Lao Wang from the beginning has prevented future troubles. This method is the blockchain distributed ledger, which has the characteristics of decentralization and allows everyone to It is the center and everyone can testify to the existence of this deal.

In addition to the characteristics of decentralization, blockchain also has the characteristics of being immutable. In the blockchain, if the data in any one block changes, even if it only changes a punctuation mark, it will become invalid and needs to be recalculated. Therefore, in the blockchain technology, once a piece of data changes, the cost will be Very big. Unless all nodes in this blockchain have 51% control. Therefore, the blockchain system will be stable and secure.

It’s still Lao Wang and Xiao Wang. If Xiao Wang wants to default on his debt, he can’t tamper with it unless he bribes everyone in the world who knows about the transaction.

Blockchain is also open and transparent.

In blockchain technology, all data is public, which is still the case of Lao Wang and Xiao Wang.

If Xiao Wang does not accept the money, once this news is released, then Xiao Wang’s reputation will be ruined. He can only pay back the money to release new news and wash out the money. Clear your own identity.

Some people say that if the blockchain is so powerful, will my identity information be revealed and there will be no privacy? In fact, the blockchain has the characteristics of anonymity and protects our privacy very well. Unless required by legal regulations, technically speaking, the identity of each block node does not need to be disclosed or verified and can be anonymous.conduct.

What are the applications of blockchain?

The origin of blockchain is to solve the problem of trust, and one of the most successful applications of blockchain is digital currency. Bitcoin is arguably the most successful application of blockchain so far.

In addition to digital currency, the future applications of Bitcoin are still very wide, and blockchain technology has been widely used in different industries. Such as product traceability, copyright protection and transactions, payment and settlement, Internet of Things, digital marketing, medical care, etc., promoting different industries to quickly enter the "blockchain+" era.

1. Payment and clearing

The role of the intermediary bank can be abandoned, point-to-point payment can be realized, intermediary fees can be reduced, and fund utilization can be accelerated.

2. Product traceability

For example, if we buy a piece of clothing on a certain website, we can see the past and present life of this piece of clothing.

3. Securities trading

Traditional securities trading requires the coordination of four major institutions, which is inefficient and costly. Blockchain technology can independently complete one-stop services.

4. Supply chain

Introduce blockchain technology into the supply chain system, synchronize information within the system, control all links, and better complete division of labor and collaboration. , to facilitate accountability afterwards.

5. Intellectual property rights

With copyright on the chain, our photographic works, musical works, literary works, etc. will become our information, and the ownership of the information will be confirmed and become our property.

6. What is blockchain and what role does blockchain play

What is blockchain? What changes will it bring to your future life?

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.

Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of related cryptographic methods. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

In the original English version of the Bitcoin white paper, the word blockchain does not actually appear, but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper, chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.

Cyberspace Administration of China 2019The "Blockchain Information Service Management Regulations" were released on January 10 and will come into effect on February 15, 2019.

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-tamperable. Unforgeable distributed ledger.

Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, and uses cryptography to ensure data transmission and Access security, a new distributed infrastructure and computing method that uses smart contracts composed of automated script codes to program and operate data.

In fact, to understand it very simply and vividly, we can imagine that everything in life is realized in digital form, including food, clothing, housing, transportation, medical treatment, education, etc., based on the Internet, it can be easily done at home Get it done, no matter where you go to do business or trade, you can completely operate it with your mobile phone. With the continuous development, everything we do can be easily completed online, such as volumetric work, production, planting, etc. Of course, the rise of 5g will bring about the end No one can accurately predict what it is now, but it will definitely bring about earth-shaking changes in life and social form!

Blockchain was born from Satoshi Nakamoto’s Bitcoin. Since 2009, various Bitcoin-like digital currencies have appeared, all based on public blockchains.

The current situation of digital currencies is that a hundred flowers are blooming. Here are some common ones: bitcoin, litecoin, dogecoin, OKcoinetc. In addition to currency applications, there are also various derivative applications, such as NXT, SIA, and BitShares. , MaidSafe, Ripple, Ethereum and many more.

On January 20, 2016, the People’s Bank of China Digital Currency Seminar announced that it had achieved phased results in digital currency research. The meeting affirmed the value of digital currency in reducing the issuance of traditional currency and stated that the central bank is exploring the issuance of digital currency.

Some areas where blockchain can be used can be:

▪ Smart contracts

▪ Securities trading

▪ E-commerce

▪ Internet of Things

▪ Social communication

▪ File storage

▪ Proof of existence

▪ Authentication

▪ Equity crowdfunding

The development of blockchain can be compared to the development of the Internet itself. In the future, something called finance-internet will be formed on the Internet, and this thing is based on Blockchain, its precursor is bitcoin, that is, traditional finance starts from private chains and industry chains (local area network), and the bitcoin series starts from public chains (wide area network), both expressing the same concept - digital assets (Digital Asset), and ultimately to An intermediate equilibrium point converges.

The core advantages of the blockchain architecture include:

Any node can create a transaction, and after a period of confirmation, it can reasonably confirm whether the transaction is Effectively, blockchain can effectively prevent problems from happening on both sides. The cost of trying to rewrite or modify transaction records is very high. Blockchain implements two types of records: transactions and blocks. Transactions are the actual data stored on the blockchain, while blocks are records confirming when and in what order certain transactions became part of the blockchain database. Transactions are created by participants using the system in the normal course (in the case of cryptocurrencies, a transaction is created by Bob sending tokens to Alice), while blocks are created by what we call Units of miners are responsible for creation.

So in conclusion, this is undoubtedly a new technology that changes life. In the future, the production activities of the entire society will be carried out with blockchain as the underlying logic, and many things will be within our reach. , coupled with the integration of artificial intelligence and big data, we can easily handle things that may seem cumbersome now, such as some securities market transactions and intelligent matching of financial management activities.

To put it simply, blockchain is a network computing center that integrates people, property, machines, and goods, and packages it into a whole; putting it on an infrastructure and running it in a network computing center .

Now the author’s imagination is not big enough to imagine what the future world will be like. I am looking forward to it!

I know a thing or two about this issue. Let’s get to know this mysterious thing - blockchain.

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each The data block contains information about a batch of Bitcoin network transactions and is used to verify the validity of the information.(Anti-counterfeiting) and generating the next block

The more popular it is, the more fake it is to keep the real. First of all, we must first figure out what the real blockchain technology is.

As an example, take buying fruits online.

The process of purchasing fruits online is as follows:

Using blockchain technology and decentralization, the process of purchasing fruits is as follows:

Summary:

1. We found that the original transaction process is: buyers make transactions with sellers, and all key processes are dealing with the payment platform. The advantage of this is that if there is a problem in any link, both sellers and buyers can seek help through the platform and let the platform arbitrate. However, a major bug or hacker attack occurs on the platform, resulting in the loss of all transfer records within a period of time. How to deal with the loss is a troublesome matter.

2. The transaction process using blockchain technology is: everyone’s ledger has exactly the same transaction record. Even if Alipay’s ledger server is broken, the seller’s ledger still exists, and the buyer’s ledger still exists. Still exists. Once this transaction occurs, the traces will never be erased.

This is the core of the blockchain, which is the four words "accounting + accounting".

The development and maturity of blockchain technology are inseparable from the foundation and foreshadowing of the above new generation of Internet technology. Blockchain is not only a technology, but also provides a service model and solution. , which has played an extremely important role in promoting the further development of the Internet industry.

1. Blockchain + Finance

2. Blockchain + Supply Chain Management

3. Blockchain + Intelligent Manufacturing

4. Blockchain + Public Services

5. Blockchain + Education and Employment

6. Blockchain + Culture and Entertainment

7. Blockchain + payment

8. Blockchain + invoice {Already enabled in Shenzhen}

Traceability and non-tamperability of blockchain , perfectly combined with the inherent nature and needs of the financial industry, which makes the application of blockchain in the field of financial services the most in-depth and relatively mature field so far. Blockchain technology has broad application prospects. The future technological competition will also be a blockchain competition.

It is important to understand blockchain, which is important to see through various pseudo-blockchain scams.

If someone uses a bunch of professional terms to explain blockchain, it will be difficult for you to understand, and they may not really understand it themselves.

Therefore, we first establish a psychological line of defense. Anyone who sells you concepts and uses a lot of unfamiliar technical terms may be a liar. Be very careful!

To understand blockchain, you must know what the core appeal of blockchain is. What do you think you are most worried about in today's highly developed Internet world?

Privacy, yes, privacy. How to protect privacy? You may be monitored at any time, and any of your personal information may be stolen at any time. If personal privacy is not absolutely protected, the Internet will become another pyramid of power. Who is standing on top of the pyramid? He is the smartest technical master, a platform provider, and an information regulator. You and I may be the people at the bottom of this pyramid.

The people who originally invented the blockchain had serious concerns about being completely swallowed up by the Internet, and tried to create an absolutely safe encryption technology to lock up personal privacy. This technology completely subverts traditional encryption technology. In fact, rather than locking up privacy, it is better to tear it into pieces and then distribute the pieces to different people for private keeping. Unless everyone agrees to take the pieces and piece together the complete code, the truth cannot be recreated. This is the first mechanism of blockchain, which is decentralization.

But decentralization alone is not enough. It is also necessary to make those who steal password fragments have nowhere to hide, so that every action of the thief can be recorded indelibly and posted everywhere on the Internet. Diffuse and make it public. This is the second mechanism of the blockchain, the non-anonymous mechanism. Do you think, who snoops into privacy is not sneaky?

In summary, the blockchain is to hide privacy in a decentralized manner, record any actions that reproduce this privacy, and make it public. Seeing this, you may want to applaud the blockchain. Don't worry, how can there be such a good thing in the world? Is there any utopia that is absolutely safe? If blockchain can be realized in an absolute sense, will the existence of the government still make sense? Yes, blockchain was originally the embodiment of anarchy. Its ultimate meaning is destined to never be realized. Its survival may have to rely on power, and it is destined to become another beautifully packaged lie and a pretense to deceive people. In this sense, the government must also specify a framework for the development of the blockchain, reconstruct the value of the blockchain, and drive out the anti-government and anti-national attempts contained in the blockchain. Some blockchain technologies can be used in concrete applications, but decentralization must not be promoted. In short, we must remain highly vigilant about blockchain. Beauty often hides its sting. Absolutely ideal recipes often turn out to be poison. The person who says he can absolutely protect your privacy and financial security is the real voyeur and vampire.

Perhaps the best way for us to protect privacy is not to have any privacy, to live a completely open life, either to live like a sun or to live like a god of wine.

Viewpoint: 1.The concept of blockchain originated from the technical attributes of Bitcoin (distributed data storage and accounting, decentralization, inability to tamper with transaction records, point-to-point information transmission, sharing mechanism...), but later some people continued to extend and expand the concept to many business fields. Convenient for capital speculation, 2. Blockchain in reality (the current blockchain on the market is very confusing), most of the hype concepts are used to make money in the stock market, there are also a lack of regulatory loopholes, legal and regulatory issues, etc., and even money laundering ( The actual operation of blockchain products is one thing, and the capital operation behind it is another). At present, the computer systems around the world cannot meet the technical requirements of blockchain attributes (such as distributed data storage and accounting, etc.) Centralization...,), network bandwidth, storage technology and computer computing system cannot meet the transaction operation requirements (it is easy to use computer technology to make your network clogged or unable to complete distributed data storage or transactions are interrupted or delayed at any time and other practical applications In addition, as far as the current global computer system is concerned, it is easy to crack the underlying program of the blockchain (this is a fatal flaw in the current global computers, 0 and 1 binary logic, and if the reverse blockchain mode operation algorithm is used, it is very It is easy to crack the blockchain. This reverse operation mode can completely tamper with all transaction records. If a real quantum computer comes to the market in the future, it can directly break all blockchain computer systems in seconds. Bitcoin mining is a Ponzi scheme. 3 .Most of the blockchains currently on the global market are basically capital hype concepts to make money.

Blockchain has been mentioned for several years. I heard a blockchain boss say at the beginning of last year, 2018 is the best year for the development of blockchain. After this year, external development has fallen behind. What is blockchain? In terms of impact, it is like pig intestines, linked together section by section. Blockchain The purpose of the chain is to connect these blocks together and fix them, using computer and Internet encryption technology to prevent secrets from being leaked to the outside world. This technology cannot be explained to non-professionals through professional terms, and generally they will not understand it. It can only Let’s use an analogy to illustrate. Let me give you two examples:

1. Four people, A, B, C and D, play mahjong and gamble in a mahjong parlor. They use chips for each game and settle the bill at once when they break up. A loses 1,500 yuan. , B lost 300 yuan, C won 200, and D won 1,600. As a result, A only had 1,000 yuan, and everyone else cleared it up, but A still owed D 400 yuan. Only these four people knew about this, These four people are a block. There is no basis for what you say, and you will not write an IOU for this kind of thing. What will happen if A does not pay back the money in the future? Except for A, B, C and D, no one else knows about this matter. If A wants to default on the debt , saying that they do not owe money at all, only three people, B, B, and D, know that A has defaulted on his debt. It is difficult for others to judge whether A owes money and will not pay it back. Therefore, the value of the blockchain needs to expand the scope of participation. If these four people were playing mahjong at that time When there are more than a dozen friends watching? Isn’t the cost of defaulting on the loan high? This is a block of real life. What about extending to the Internet? Then there are endless possibilities and more scenarios.

2. If four people, A, B, C and D, are doing business in a business group of 500 people, this group of 500 people is a big block. Once, A asked B for 10,000 yuan of goods, but did not pay B in time. A said at that time that he would pay B within 3 days. Everyone in the group knows this. If A fails to send money to B within 3 days, then the other 498 business partners in the group will know about it. If A defaults on the debt, his reputation in this business circle will be ruined. affected. This is a block.

Later, A wanted to do business with C. C asked A for goods. A said that you should pay a deposit of 5,000 yuan and the goods will be shipped immediately. C paid 5,000 yuan to A, but A was delayed. Not shipping, everyone in this group knows, this is another block. When the two blocks are connected, everyone doubts A's credibility. How many times have you done this? Will Mr. A continue to play in the future? This is the value of blockchain.

Blockchain may seem complicated, but it is not complicated at all; it may seem simple, but it is actually very difficult to operate. The blocks are too small and meaningless. If a block wants to grow bigger, privacy and business secrets will be involved. For example, it is inconvenient to talk about falling in love in a large group; for example, it is inconvenient to discuss it publicly in the group (block) beforehand when working together to do big business. However, there are still occasions when blockchain technology is used, such as poverty alleviation work, disaster relief fund management, etc. It is exposed to the sun and everyone knows it and supervises each other. I’ve given these two examples. Do you understand them at all?

[The most core and easy-to-understand introduction to blockchain]

1. How does blockchain create trust? We use "1", "2", and "3" to summarize the characteristics of the blockchain:

- "1" summarizes the blockchain: a trusted distributed database;

- "2" core properties: distributed, non-tamperable;

- "3" key mechanisms: cryptography principles, data storage structure, consensus mechanism.

The "distributed" and "non-tamperable" properties ensure the "honesty" and "transparency" of the blockchain, which is the basis for the blockchain to create trust.

2. In terms of industry, it is expected that the financial industry will be dominated by the financial industry in the next 3-5 years, gradually radiating to other real industries, more realistic scenarios will be accelerated, and the industry will develop from "1 to N" to Including entertainment, product traceability, credit reporting, etc.

In the future, in addition to using technologies such as side chains, lightning networks, and cross-chains, blockchain will also need to be deeply integrated with emerging information technologies such as 5G, artificial intelligence, big data, and the Internet of Things to enhance the Technical performance and off-chain data quality and reduce resource waste.

3. Smart contracts may be the most revolutionary application on the blockchain. If smartContracts are widely used on the blockchain, and the economic division of labor will be further refined in the Internet era. Network nodes around the world will directly connect demand and production, and broader social collaboration will be realized.

If the above vision is realized, the combination of blockchain technology and industry is expected to usher in an explosive moment "from 1 to N". Its explosion may not be linear but non-linear. Blockchain Only then can the chain be upgraded from a "trust machine" to an important "engine" leading the industry wave.

Decentralization. Prevent cheating. It used to be that one person kept accounts and could make changes. Now there are 50 people. Each person records an entry and everyone has a record in the account book. Can you make changes to all 50? All 50 ledgers are valid unless they are all changed. So it's very useful.

I saw many people answering that ordinary people cannot understand intuitively. Let me explain simply and clearly, blockchain is decentralized. When something happens, everyone writes it down and has their own password, which cannot be tampered with.

Even if a hacker wants to change it, he has to do it one by one, which will tire him out. In fact, it is impossible, at least for now.

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.

Blockchain originated from Bitcoin and is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of cryptographic methods. The associated data blocks are generated. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of its information and generate the next block.

Blockchain has potentially huge application value in financial fields such as international exchange, letters of credit, equity registration and stock exchanges. The application of blockchain technology in the financial industry can eliminate the need for third-party intermediaries and achieve direct point-to-point connection, thereby greatly reducing costs and quickly completing transaction payments.

After reading so many expert advices, I am still confused. I only remember that someone used this so-called "blockchain" to do pyramid schemes in the past...

7. With so many blockchain currencies, what is the significance of mining?

The significance of Bitcoin mining - distributing initial Bitcoins
Bitcoin opponents accuse mining of consuming a lot of resources in vain To do meaningless coin tossing, supporters give the example of gold mining, which wastes a lot of resources on meaningless digging. For the Bitcoin system, the greatest significance of this kind of mining that consumes a lot of resources is: fairly distributing the 21 million initial Bitcoins, just like consuming resources to mine gold, consuming resources to mine Bitcoins is the only fair way to distribute the initial Bitcoins currency way.

Bitcoin is based on blockchain technology (ChainNova)Digital currency, and blockchain technology is simply understood as an electronic currency ledger system implemented through point-to-point. It can record every Bitcoin transaction record through the network, and it is decentralized and no one can change it without authorization. Therefore, for Its holders have very stable security.
But the fairness of all these methods of distributing initial coins is far weaker than the model of burning money to obtain initial Bitcoins, and fairness is the core issue of a currency system. Therefore, although Bitcoin mining consumes A large amount of resources, but it is a reasonable economic behavior like consuming resources to mine gold mines.

8. What is the true meaning and role of Bitcoin

Decentralization: Bitcoin is the first distributed virtual currency. The entire network is composed of users and there is no central bank. . Decentralization is the guarantee of Bitcoin’s security and freedom.

Worldwide circulation: Bitcoin can be managed on any computer connected to the Internet. Anyone can mine, buy, sell or receive Bitcoin regardless of location.

Exclusive ownership: Manipulating Bitcoin requires a private key, which can be isolated and stored on any storage medium. No one can obtain it except the user himself.

Low transaction fees: It is free to remit Bitcoin, but there will ultimately be a transaction fee of approximately 1 bit cent per transaction to ensure faster transaction execution.

No hidden costs: As a means of payment from A to B, Bitcoin has no cumbersome limits and procedures. You can make the payment by knowing the other party's Bitcoin address.

Cross-platform mining: Users can explore the computing capabilities of different hardware on many platforms.

(8) Extended reading on the meaning of coins in each blockchain:

Bitcoin is the earliest and largest cryptocurrency to date. Bitcoin and blockchain were born at the same time. , like gold, the issuance of Bitcoin cannot be exceeded, and the total amount is capped at 21 million. Gold is not issued by any country, but is issued by nature, so most people recognize gold as currency.

The logical setup of Bitcoin is exactly the same as that of gold. So how much is Bitcoin worth? Let’s take a look at an enduring joke in the currency circle. Nine years ago, a programmer exchanged 10,000 Bitcoins for two pizzas. This transaction was the first Bitcoin transaction, and it also shows that Bitcoin can be used as a currency. Circulated, this is the embodiment of the value of Bitcoin.

If the blockchain is compared to flour, then Bitcoin is a steamed bun made from flour. Of course, flour can also be used to make flower rolls, pancakes, etc., but the first food made with flour is Steamed bun.

Similarly, Bitcoin is the first application of blockchain technology. However, blockchain technology itself can have many uses besides being applied to Bitcoin. For example, blockchain can effectively solve Identity forgery, data tampering, etc. in the central supervision system.

Reference source: Network-Bitcoin