区块链的故事和事故,十个故事了解区块链

区块链是一种分布式记账技术，也是一种新型的数据存储技术，它将数据存储在一个可验证、不可篡改的分布式数据库中。近年来，区块链技术发展迅猛，已经成为全球最热门的技术之一，也是许多技术创新的基础。以下是三个与区块链相关的关键词，以及它们的解释：

去中心化：

去中心化是区块链技术的基础，它是指没有中心化的组织或系统，所有节点都是平等的，没有一个节点可以控制其他节点。这意味着，在去中心化的系统中，没有任何一个实体可以控制整个系统，也不存在单点故障，从而极大地提高了系统的安全性。

智能合约：

智能合约是一种可以自动执行的程序代码，它可以在区块链网络上运行，智能合约可以在没有中介机构的情况下，自动执行双方之间的协议，而且智能合约的执行过程是安全、可靠的，因此，智能合约可以用来替代传统的中介机构，从而大大降低交易成本和风险。

共识机制：

共识机制是区块链网络中最重要的技术，它是指网络中的节点之间通过一定的算法来达成共识，从而保证数据的安全性和一致性。常见的共识机制有工作量证明（Proof-of-Work）、拜占庭将军问题（Byzantine Generals Problem）、点对点网络（Peer-to-Peer Network）等。这些共识机制是区块链网络的基础，只有当网络中的节点之间能够达成共识，区块链网络才能够正常运行。

以上就是关于区块链的三个关键词：去中心化、智能合约和共识机制，它们是区块链技术的基础，也是许多技术创新的基础。因此，了解这三个关键词对于深入了解区块链技术非常重要。

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❶ Several thrilling blockchain stories

After sending Emily to school yesterday, she hurried home. The sixth of every month is the day for our Class 10 scheduled investment. When I turned on the computer, I was shocked. The day before, Bitcoin was still trading sideways at around 7,300 US dollars. Why did it suddenly become 6,400 US dollars? I rubbed my eyes. That's right, the overnight drop was as high as 13%. Before, I subconsciously thought that it would break through the 7400 mark. I didn't expect that there is a principle in the bear market called "If it lasts for a long time, it will fall."

Of course, in the blockchain world, yesterday’s 13% drop is nothing new. We old leeks followed Li Xiaolai’s path to wealth and freedom and came to this “exciting” world. It has been more than a year, and although I haven’t seen the rainbow yet, I have experienced the wind and rain. During last year’s 94 policy, Bitcoin fell by 36% in a few days. At that time, I had money in Yunbi but I didn’t dare to buy it. Only now do I realize how stupid I was at that time. At that time, I really didn’t understand anything, not finance, blockchain, and investment. I only knew that Li Xiaolai was awesome, and the people who left comments under his column were awesome. I wanted to join them, and no one else. Stop me, whoever stops me, I will be in a hurry, this is the passionate All-in blockchain.

But precisely because of being too timid, there have been very few operations over the past year, and precisely because of the few operations, the losses have not been large. My own blockchain story is as plain as a glass of boiled water.

Yesterday, I watched a video program about blockchain stories in Tencent's "Talk to Strangers". In the program, three people were interviewed: Zeng Wen, a wage earner, and Colorful Shenyu, a big boss in the currency circle. and Liu Ke, a sophomore student.

Zeng Wen, a migrant worker with a junior high school education, first worked at Foxconn. He was so busy that he had to trot all the way to the toilet. He said that he was always bullied by others because he was too honest, and he did all kinds of hard work. Yes, but no money. Later I met a girlfriend who treated him well in order to lure him into a pyramid scheme. As a result, she lost all her parents’ hard-earned money of 60,000 yuan. She escaped from the pyramid scheme and was deceived into working in a rat barn. , the people behind use money to patch up the holes made by those in front, but naturally there will always be a day when the holes can’t be patched up. This has defrauded all the men, women, and children in the village. They owe a debt of 300,000 yuan, and they are so scared that they dare not go home during the New Year. Later, he thought that if he relied on part-time work, he would never be able to repay so much money in his life, so he was introduced to the blockchain by a friend again. In 2017, during the blockchain bull market, I earned 30,000 yuan a day at my peak. Within a few months, I suddenly became a millionaire, and the coins I bought increased tenfold or a hundredfold. Not only did he pay off all the money he owed before, but he also sent money to his parents, helped them buy rings, and bought the largest TV set in the village for his family. Of course I have reached a new "class". Taking the bus used to be too expensive, but now I take a taxi when I go out. I go to KTV to hire girls. I am romantic and happy. Happiness comes at a lightning speed. Who knew that at the beginning of 2018, Bitcoin would rise from a high of 20,000One U.S. dollar suddenly fell to the level before liberation, and the myth of wealth creation was so easily shattered. Now he's back to his old self, but confident about the future. The host asked, where does your confidence come from? He said that he was trained when doing MLM. To do MLM, you must have positive energy.

Colorful Shenyu, a big figure in the currency circle, went to the library one day when he was in his first year of study and saw the news about Bitcoin. Then I skipped school and spent all day studying Bitcoin in my dormitory. The more I studied it, the more I liked it. I thought it was a new technology that would subvert the world. From then on, All in the blockchain, they were the first group of geek players, digging and selling coins by themselves. When he was 23 years old, he suddenly found that there were 100 million assets in his bank account. He was stupid, what should he do? ? How to spend 100 million? Go check the posts on Zhihu and read them one by one. In the end, you have so much money that you don’t know how to spend it, so you just go trash the place. You throw a party wherever you go and trash the place. After you spend the money, you’ll be fucking awesome. If it doesn't work, I have plenty of money. You can decide how much compensation I will pay.

Bitcoin is both a devil and an angel, occupying their lives. At the beginning, the price of Bitcoin was extremely low, ranging from a few dollars to dozens of dollars. It rose to hundreds of dollars. After a few thousand dollars, it dropped rapidly. It dropped so much that even my own mother no longer recognized her, and she couldn’t even recover the cost of mining. The mine can only be closed. After being lost and confused for a month, he came back again. This time he went to Sichuan, Xinjiang, and Tibet to mine in remote places with cheap electricity. In those places, traffic was almost paralyzed, and he often had to face sudden mudslides. .

Seven years is a lifetime. From 2011 to 2018, it is exactly a lifetime. In this life, the colorful fish has experienced many joys, angers, sorrows and joys that its peers cannot experience at all. It has experienced too many storms and waves in life. Now he is still a loyal fan of Bitcoin. He said that even if Bitcoin becomes zero one day, I will always collect some Bitcoins. It was Bitcoin that changed his life path. Otherwise, he would be an unknown program. ape.

The last story is the most tragic, and the director deliberately placed Liu Ke in the finale. Liu Ke, a sophomore, failed to speculate on Bitcoin and is now alone in a foreign country, struggling to survive by doing drug experiments for hospitals. The reporter asked him, do you know that conducting drug experiments in hospitals is a high-risk job? He said, of course he knows that the higher the price, the more dangerous it is, but if you were me, you would do the same.

Liu Ke is a handsome-looking boy. If he had not embarked on the road of blockchain, he would be playing basketball on the playground with a bunch of girls cheering for him. He wiped the sweat from his face and turned to give the girls a chic pose or a charming smile.

Although his parents are not rich people, they run a small business at home and give him 1,000 yuan a month for living expenses. If he could study and study peacefully, he should have been able to graduate successfully. But whenIn 2017, the myth of blockchain wealth creation, the myth that he doubled his money in one night with 3,000 yuan, made him lose control, so he took out loans on various platforms and used the loan money to invest. At that time, currency speculation was Just like a cash machine, you can make money no matter how you speculate, and the word "risk" in his world disappears.

So he used 20 times the leverage to leverage greater wealth. He never imagined that the wealth would not be leveraged, and the nightmare was awakened. Creditors came one after another with all kinds of threats and inducements. He felt that he could no longer stay, so he thought of committing suicide. His parents had already persuaded him not to blindly speculate in coins, but he couldn't listen and hurt his parents' hearts again and again. Feeling very guilty and blaming himself, he did not commit suicide and had no choice but to flee to Cambodia. I don’t know when the days of running away like this will end.

After watching this video, I felt mentally uncomfortable for a long time. It can be said that there is no threshold for entering the blockchain world. Anyone can enter. You don’t need to understand finance or blockchain. You don’t need to know how to invest, even if you only have a few hundred yuan, you can enter. But now the industry is so unstandardized. Many people and many projects are just here to cheat, prepare a white paper, and after a wave of increases, the banker makes money and runs away. The unlucky ones are the leeks bought later. So far, the blockchain is a zero-sum game. At this stage, no real hematopoietic function has been born. So it is similar in nature to the rat warehouse. The people who get rich in the front are just making money from the leeks that enter later.

But investment is something we must face in this life. If we have never invested in this life, our understanding of human nature and society will never be complete. But investment only seems very simple. To invest well, you need to practice continuously.

❷ Has China’s blockchain industry chain been formed?

The “2018 China Blockchain Industry White Paper” released by the Information Center of the Ministry of Industry and Information Technology of China on the 20th stated that currently, China’s The blockchain industry is in a stage of rapid development, and the industrial chain has initially taken shape.

Judging from the distribution of blockchain industry subdivisions, as of the end of March 2018, the largest number of industry application service companies in the blockchain field were The number of companies providing application services in the financial industry has reached 86, and the number of companies providing application services mainly for the real industry has reached 109. In addition, the number of related companies in the fields of blockchain solutions, underlying platforms, blockchain media and communities is more than 40.

Content source ifeng.com

❸ Why is the blockchain so popular

Why is the blockchain so popular
In early February this year, Weibo The account "Sina Finance" posted this: A young man from Hangzhou went on a blind date online, but no girl talked to him for more than a month. Later, he added a "blockchain engineer" label to himself and received 200 in a few days. Multiple private messages.
As the most popular nowadaysAs a popular industry, news about recruiting blockchain talents with an annual salary of one million makes headlines from time to time. The blockchain industry is becoming a new blue ocean in the job market.
Blockchain talent is in short supply
Blockchain technology is a product of Bitcoin. In 2008, the founder of Bitcoin, who calls himself Satoshi Nakamoto, proposed the concept of "blockchain". By 2015, this underlying technology of Bitcoin has become the new favorite in the global financial and technology industries, and the demand for relevant talents has also increased. Then it increased dramatically.
U.S. Bloomberg quoted data from the professional social networking site "LinkedIn" as saying that job postings related to blockchain, cryptocurrency and Bitcoin increased at least four times in 2017; on CoinDesk, one of the largest employment websites in the United States , 15 of the 18 most popular industry positions are related to cryptocurrency. Data from the website shows that the number of blockchain technology jobs posted in the United States in 2017 increased by 207% compared with the same period in 2016, and by 631% compared with the same period in 2015. On China's mainstream Internet recruitment apps, there are thousands of recruitment information in the blockchain industry.
Corresponding to the rapid expansion of scale, there is a serious shortage of professional talents. Since blockchain has just become popular for two or three years, schools and educational institutions have not caught up, and relevant courses are rare. In addition, blockchain is an interdisciplinary industry that places equal emphasis on knowledge and experience, which poses greater challenges to talent training. challenges.
There are two main types of companies hungry for blockchain talent: well-established technology companies and ambitious startups. Bloomberg quoted Griffith Hill, the chief recruiter of a blockchain talent team, as saying that the technology software industry and the financial services industry are the two fields with the largest number of blockchain jobs posted on LinkedIn.
Almost all Internet companies are recruiting blockchain front-end architects and blockchain development engineers, including eBay, ESPN and Uber in the United States, and Tencent, Xiaomi, Xunlei, Lenovo, JD.com in China... According to the 2017 Fintech 100 Companies 2018 According to a report released in March 2017, half of the top ten blockchain recruiters in the world in 2017 were Chinese companies, with Ant Financial, Zhongan Technology and Qudian taking the top three spots. Internet finance, computer software, and enterprise services have the strongest demand, accounting for more than 50% of the total.
Traditional companies are also vigorously recruiting blockchain talents to improve their own efficiency or better serve customers. Data from CoinDesk shows that large consulting firms such as Deloitte and IBM are the largest employers in the industry. Deloitte has hired more than 800 people in the blockchain field. IBM is also actively looking for relevant talents. In 2017, the company's employees in the blockchain field increased from 400 to 1,600, and more than 400 blockchain projects were launched. There are still more than 150 blockchain-related job vacancies.
The geographical distribution of blockchain jobs is closely related to economic level. The American "Forbes" magazine website announced the top 15 blockchain employment cities in the United States in February 2018, with New York ranking first., with a job gap of 1,316; followed by San Francisco, Boston, Chicago, etc. Outside the United States, there are 423 vacancies in London, 357 in Singapore, 149 in Toronto and 97 in Sydney. In China, according to statistics from Huxiu.com in February 2018, "Beijing, Shenzhen, Hangzhou and Guangzhou" account for more than 80% of blockchain-related positions in China, with Beijing ranking first with 44.2%.
The threshold for core positions is high
Blockchain talents are not necessarily “coders”. Of the 800 newly recruited blockchain talents by Deloitte, half are developers or architects, and the other half are business analysts, strategy and technology consultants, accountants, etc. Specifically, recruitment in the blockchain industry mainly includes technology, project, operation, and logistics categories.
Of course, technical positions are the most urgently needed. According to statistics from Huxiu.com in February 2018, R&D positions accounted for 49.34%, followed by operations, marketing, and researchers. Technicians need to be able to build applications on top of the core platform and, ideally, independently develop cryptocurrency platforms such as Bitcoin and Ethereum. To this end, they need to master at least one or more languages ​​such as C, C++, C#, Java, Go, etc., have a deep understanding of the underlying technology of the blockchain, understand various mainstream consensus algorithms, and also understand economic principles, monetary theory, etc. . If you want to do blockchain development, the threshold is really not low.
In comparison, the threshold for the other three types of talents is lower and they do not need to have too much industry background. They only require a clear understanding of blockchain knowledge based on their own expertise. If you know some financial knowledge and can perform data analysis, it will be the icing on the cake. From an educational point of view, a master's degree is a necessary stepping stone.
For the blockchain industry, compound talents are undoubtedly the most popular. Therefore, talents who master C++ and Go, and are proficient in cryptography and distributed computing are the most popular at the moment. Most companies will form teams of people with different expertise to make up for their respective shortcomings and gradually learn and grow during the project implementation process.
The blockchain industry is developing extremely rapidly, and you need to have very strong curiosity and the ability to learn quickly to keep up with the pace of blockchain development. Therefore, youth is the biggest bargaining chip. Talents who have been in the industry for 1 to 3 years are the most sought-after at the moment. This is because this period of time allows a person to accumulate sufficient experience in blockchain development without being worth so much that employers will be put off.
Of course, top talent is always scarce. People who can independently develop cryptocurrency platforms such as Bitcoin and Ethereum are being chased around the world. Some people think that there will be no more than 2,000 such "big names", and some even think that there will be no more than 200 people. The difficulty of this kind of work is equivalent to writing code from scratch to create an operating system that can compete with Android or iOS. What most technicians can do is equivalent to developing apps on the operating system.
Some people make a million dollars a year, and some people make a bottom dollar
Can blockchain practitioners really make "a million dollars a year"? According to data from mainstream recruitment websites, it is indeedThis is true. For example, Suning.com offers a monthly salary of 50,000 to 100,000 yuan to "senior blockchain developer", and Keda shares also offers a monthly salary of 85,000 to 100,000 yuan to a "blockchain R&D director." However, Alibaba Health's monthly salary for "blockchain technology experts" is 15,000 to 30,000 yuan, and the "blockchain technology evaluation" position at China Academy of Information and Communications Technology is 10,000 to 20,000 yuan.
It can be seen that salaries in the blockchain industry are also polarized, and the differences are huge. The annual salary of core technical personnel generally starts at 150,000 yuan, and senior "big bulls" can indeed earn more than one million yuan per year, and also enjoy equity or option awards; the income of product, media or administrative personnel is not much different from that of other industries. According to Bloomberg, the market The salary level of marketing positions is at the bottom of the entire blockchain industry, with an average annual salary of only US$63,000, compared with RMB60,000 to RMB120,000 in China.
According to statistics from Huxiu.com, positions with a salary of 120,000 yuan/year account for about 18.6% of the total R&D positions, positions with a salary of 180,000 to 240,000 yuan/year account for about 36.2%, and the remaining 47.8% are distributed Within different salary ranges. Salaries vary greatly between regions. The average annual income of blockchain practitioners in places such as Shanghai and Beijing is about 200,000 yuan, while in Guangdong, Zhejiang, Fujian and other places it is about 160,000 yuan.
Be careful when facing the trend
The current explosive growth of the blockchain industry is mainly due to the intensive influx of capital, which is inevitably reminiscent of the Internet bubble from 1998 to 2000: after the capital carnival, most companies Finally left sadly. The main growth in blockchain jobs comes from the mushrooming of start-up companies. These companies are inevitably good and bad, and many of them use asymmetric information and over-package "empty-glove white wolves".
According to the technology and economic media "Titanium Media", there are currently many recruitment "routines" for domestic blockchain companies. Many companies use "financial freedom" to attract job seekers, promising to reward employees with stock options after financing is in place, and even allow employees to join as "partners." But the actual situation may not be like this - no salary will be paid in the first three months of joining, the actual office area is only 15 square meters, the team only has two or three people, and there are no system regulations and constraints. As for the work content, it is to "plan two to three product promotion plans every day." The "product" is actually the company's own "digital currency". The purpose is to attract retail investors and institutions to subscribe as much as possible. When the number of buyers reaches a certain number Then "encircling" capital institutions to invest is quite a scam.
Titanium Media stated that there are currently countless blockchain companies stationed in incubators in various places, and most of them have not yet received financing, and some even lack corresponding capital flow support; employees are often fresh graduates and those with higher qualifications. The shallow ones are the main ones, and they only talk about "ideals" but not about money; some companies "scam the money and then run away." "These blockchain companies may look prosperous, but in fact they may be very poor, just waiting to use white papers to cut leeks." Faced with the full screen on the recruitment app, "The company's CEO and partners personally lead the team, the team is top-notch, and the atmosphere is good. userOver 100 million, sufficient funds, unlimited development space, option incentives, five insurances and one housing fund, no check-in..." and other slogans, job seekers should remain cautious and calm.
The current "high salary" image of blockchain , to a certain extent, is due to the explosive growth of the industry and the shortage of talents. Against the background of the overall slowdown in the economic situation, there is nothing wrong with seizing rare development opportunities and pursuing higher salaries, but diving headfirst into emerging industries that are unfamiliar to most people field, the risks cannot be ignored. When the industry further develops and matures, the relevant talent training mechanism will gradually improve, and more professionals will enter the field in the future. If you do not pay attention to improving your own strength and blindly follow the trend, then the "annual salary of one million" may After all, it is just a myth under the bubble.

❹ Xu Mingxing said that the application prospects of blockchain are broad, is this true?

After ten years of development, my country’s blockchain industry has basically formed A relatively mature industrial chain. Under the conditions of national policy promotion and increasing demand in downstream application fields, the market scale of my country's blockchain industry continues to develop, with high geographical concentration and obvious industrial cluster effects. With the maturity of blockchain technology The blockchain industry is entering the 3.0 stage as a whole, with good performance in finance, logistics, copyright protection and other fields, and has contributed greatly to promoting China's digital construction and accelerating the process of Digital China.

< p>Blockchain industry panorama: numerous application fields and good development prospects

From the perspective of the industrial chain, my country's blockchain industry includes upstream hardware, technology and infrastructure; midstream blockchain applications and technologies Services; downstream blockchain application areas and other links. Upstream hardware, technology and infrastructure mainly provide necessary hardware, technology and infrastructure support for blockchain applications. Among them, hardware equipment includes mining machines, mining pools, and chip manufacturers. etc.; general technologies include distributed storage, decentralized transactions, data services, distributed computing and other related technologies. Midstream blockchain applications and services include basic platform construction and provision of technical service support, of which basic platform construction is divided into general foundation chain and vertical domain basic chain; technical service support includes technical support and service support. Technical support is similar to upstream related technologies and is responsible for providing buyers with a series of technical support based on blockchain products such as blockchain security protection; service support includes Digital asset trading venues, digital asset storage, media communities and other series of services. Downstream application areas include the combination of applying blockchain technology with existing industries, mainly including the financial industry, logistics industry, copyright protection, medical health, industrial energy and many other fields As an emerging technology, blockchain has many downstream application fields and huge development potential.

So far, based on various application participation methods, blockchain is mainly divided into Public chain, alliance chain, private chain. The public chain is the earliest blockchain and the blockchain with the most extensive consensus at present. It refers to a block like the Bitcoin blockchain that is completely decentralized and not controlled by any organization. chain, after the blockchain entered the 2.0 era, public chains, private chains, and alliance chains began to enter the blockchainRegarding the application scope of the chain, the 3.0 era is more about the application of technologies such as cross-chain communication and multi-chain integration.

The above data and analysis are all from the "In-depth Analysis Report on Business Model Innovation and Investment Opportunities in China's Blockchain Industry" by the Qianzhan Industry Research Institute.

❺ What disruptions does blockchain bring and why can it become a national strategy?

The disruptive characteristics of blockchain lie in the following four aspects: 1. Transparency. The data records of the blockchain system are transparent to the entire network nodes, and the update operations of the data records are also transparent to the entire network nodes. This is the basis for the trust of the blockchain system. Since the blockchain system uses open source programs, open rules and high participation, blockchain data records and operating rules can be reviewed and traced by nodes throughout the network, with high transparency.
2. Openness. The blockchain system is open. Except for the private information of the parties directly related to the data, which is always encrypted, the blockchain data is open to everyone (except for blockchain systems with special permission requirements). Anyone or participating nodes can query blockchain data records or develop related applications through public interfaces, so the entire system information is highly transparent.
3. Information cannot be tampered with. Once the information of the blockchain system is verified and added to the blockchain, it will be permanently stored and cannot be changed (except for systems such as private blockchains with special change requirements). Unless more than 51% of the nodes in the system can be controlled at the same time, modifications to the database on a single node are invalid, so the data stability and reliability of the blockchain are extremely high
4. Decentralization. Decentralization is the most basic feature of blockchain, which means that blockchain no longer relies on central processing nodes and realizes distributed recording, storage and updating of data. In a traditional centralized network, attacking a central node can destroy the entire system. However, in a decentralized blockchain network, attacking a single node cannot control or destroy the entire network or more than 5% of the nodes in the network. It's just the beginning of gaining control. 2019 is the first year of commercial application of blockchain technology, and favorable policy incentives will make the development of blockchain technology more stable.
As the application of blockchain technology gradually penetrates into many fields such as digital finance and the Internet, everyone has a clearer understanding of the value of blockchain.
Blockchain has formed a global competition situation. All countries are seizing development opportunities, and China cannot lag behind; therefore, it is understandable that blockchain has become a national strategy.

❻ What is the development history of blockchain technology?

Which came first, Bitcoin or blockchain? When Bitcoin was first born, there was no concept of "blockchain". People used bitcoin (lowercase b) to represent Bitcoin, and Bitcoin (capital B) to represent its underlying technology, which is what we now call blockchain technology. In 2015, after The Economist published its cover article "Blockchain Technology Reshaping the World," blockchain technology set off a financial technology craze around the world. Major financial institutions and banks around the worldThere is a rush to research blockchain technology, and billions of dollars were invested in blockchain-related companies in 2016 alone. In September 2017, the Chinese government website (www.gov.cn) published an article "my country's Blockchain Industry is Expected to Lead the World", publicly supporting the development of blockchain technology and popularizing blockchain technology to 1.3 billion Chinese people. . The application of blockchain in real economic fields such as finance, insurance, retail, and notarization has begun to accelerate.

❼ How an Alipay engineer explained the concept of blockchain to his son

What exactly is blockchain? How far is it from our lives? An Alipay Warm Dad engineer explained the problem clearly with a fairy tale.

However, after reading the story of the Mouse King, the boy named BIG G stumped his father by asking a question during a video call: BIG Where does G come from? Can this process be traced using blockchain?

Content source Sohu

❽ One article to understand the Internet blockchain

One article to understand the Internet blockchain

One article to understand the Internet To understand blockchain, you have to study the brief history of blockchain technology development starting from the birth of the Internet, discover the motivations for blockchain, and infer the future of blockchain. Let’s understand the Internet blockchain in one article.

Understand the Internet blockchain in one article 1

The originator of blockchain is mahjong, and the earliest blockchain was invented by the Chinese! The blockchain is just like Mahjong, except that Mahjong has fewer blocks. Mahjong only has 136 blocks. The rules of Mahjong vary from place to place and can be regarded as a hard fork of Bitcoin.

As the oldest blockchain project, Mahjong has a group of four miners. The first one to dig out the 13 correct hash values ​​will get the accounting rights and rewards. It adopts the method of being willing to admit defeat and not cheating. Thousands of consensus mechanisms!

Mahjong is decentralized, everyone can be the banker, and it is completely peer-to-peer.

Mining pool = commission from the boss of the chess and card room.

It cannot be tampered with, because convincing the other three people requires too much computing power and physical strength.

A typical value Internet. The value in my pocket didn't last eight rounds before it went into their pockets.

The Chinese are basically good at playing mahjong. In terms of blockchain, they produce 70% to 80% of the world’s mining machines and have the most computing power in the world, accounting for about 77% of the computing power.

Mahjong is actually the earliest blockchain project:

1. A group of four miners. The miner who first collides with the correct hash value of 13 numbers can obtain the accounting rights. and get rewarded.

2. It cannot be tampered with. Because convincing the other three people requires too much computing power and physical strength.

3. Typical value Internet. The valuable digital currency in my pocket www.gendan5.com/digitalcurrency/btc.html It didn’t take eight rounds before it ran into their pockets.

4. Decentralization, everyone can be a banker, it is completely peer-to-peer.

5. UTXO, unspent transaction expenses.

There is another blockchain method of credit, assuming that everyone has no cash

Let’s take a closer look. When everyone reaches a consensus, we see There is no intermediary or third party to judge C’s win, and the rewards given to C do not need to be transferred to C through a third party. They are all direct peer-to-peer transactions. This process is decentralized, and players (miners) record their own records. After recording the results of the first game, B Dahu drew thirteen pieces, and B got Jia Dongfeng. After the record was completed, a complete block was generated, but remember, this was only the first game. In the entire blockchain , this is just one node. After the 8 rounds mentioned at the beginning, there are 8 nodes (blocks). The 8 blocks are connected together to form a complete ledger, which is the blockchain. Because everyone has one of this ledger, it is a distributed ledger. The purpose is to prevent someone from tampering with the record. At the end of the game, it is clear who wins and who loses.

Four men (A, B, C and D) got together to play mahjong for money. None of them brought any cash, so they asked a beautiful woman (centralized) to use a book to keep records and record who won and how much money they won in each round. , Who lost how much? At the end of the day, everyone uses Alipay or WeChat to pay and settle the ledger. However, if this beauty made a mistake in accounting or was bribed by one of the four people in advance to make a mistake on purpose, there is no guarantee that the outcome of this game will be fair, just, and reasonable. ,dont you agree? then what should we do? If you "play mahjong", you can use "blockchain" as the game rules and adapt it as follows:

Four men (A, B, C and D) got together to play mahjong for money. No one brought any cash. B said Let the beauty she brought keep accounts. A said that none of us knew this beauty, so the four of them, A, B, C, and D, agreed that everyone would keep accounts at the same time (decentralized) on their mobile phones (blockchain nodes) for each game. ), after finally playing mahjong and paying with electronic money directly on the mobile phone, everyone checked the accounting results. The accounting results should have been the same.

Assume that the original result is the account recorded on A’s mobile phone: B owes A 10 yuan. However, the record on B's mobile phone shows that there is no debt, but the other two people (C and D) have the same accounting as A, so the settlement is still based on the majority rule. In addition, everyone has a bad impression of B's ​​integrity. Next The first time I play mahjong, I won’t take B to play with me.

Unless B bribes two people (C and D) in advance to deliberately cheat, but the cost of B bribes them is 100,000 yuan (10,000 times the default of 10 yuan), then in common sense, B only You can choose to give up because the cost of counterfeiting is too high.

Assume that even if B is secretly willing to pay a high price of 100,000 yuan to buy C and D to do this silly cat transaction with huge losses, but the rules of the blockchainThe accounting is based on time stamps. It turns out that B owes A 10 yuan at 1 p.m., that is, when C and D change the account at 3 p.m., time is irreversible and can only be recorded at 3 p.m. That would be inconsistent with the rules of the game.

In fact, in 2017 the blogger has developed a set of Mahjong coins

China’s earliest blockchain project: a group of four miners, first starting from 148 random numbers The miner who collides with the correct hash value of 14 numbers can obtain an accounting right incentive. Since distributed accounting requires the consensus of several other miners, each accounting transaction takes about ten minutes.

Understanding the Internet Blockchain in One Article 2

1. Before the birth of Bitcoin, 5 Internet technologies that will have a significant impact on the future of the blockchain

In 1969, the Internet was born in the United States. Since then, the Internet has expanded from four research institutions in the United States to the entire planet. In terms of application, it has expanded from the earliest military and scientific research to all aspects of human life. In the nearly 50 years since the birth of the Internet, five technologies have been of particularly great significance to the future development of blockchain.

1. The TCP/IP protocol born in 1974: determines the position of blockchain in the Internet technology ecosystem

In 1974, the most critical step in the development of the Internet was taken by The TCP/IP protocol, the core communication technology of the Internet jointly developed by American scientists Vinton Cerf and Robert Kahn, was officially launched.

This protocol enables the transmission of information between different computers and even different types of networks. All computers connected to the network can communicate and interact as long as they comply with this protocol.

In layman's terms, Internet data can travel tens of thousands of kilometers to reach the computer users who need it. This is mainly because the Internet world has formed a unified information dissemination mechanism. That is to say, Internet devices follow a unified law-TCP/IP protocol when disseminating information.

Understanding the TCP/IP protocol is of great significance to mastering the Internet and blockchain. After the invention of TCP/IP in 1974, the entire Internet was between the underlying hardware devices, the intermediate network protocols and the network Addresses have always been relatively stable, but an endless stream of innovative applications are emerging at the top application layer, including news, e-commerce, social networks, QQ, WeChat, and blockchain technology.

In other words, in the technical ecology of the Internet, blockchain is a new technology on the top layer of the Internet - the application layer. Its emergence, operation and development have not affected the underlying infrastructure and communication protocols of the Internet. , is still one of the many software technologies that operates according to the TCP/IP protocol.

2. Cisco router technology born in 1984: an imitation of blockchain technology

In December 1984, Cisco was established in the United States. The founder was a professor from Stanford University. Couple, Computer Center Director LaiLeonard Bosak and Sandy Lerner, director of the Computer Center of the Business School, designed a networking device called a "multiprotocol router" and placed it in the Internet's communication lines to help data arrive from one end of the Internet accurately and quickly Thousands of kilometers to the other side.

In the entire Internet hardware layer, tens of millions of routers are busy working, directing the transmission of Internet information. An important function of Cisco routers is that each router saves a completed Internet device address table. Once something happens Changes will be synchronized to tens of millions of other routers (theoretically), ensuring that each router can calculate the shortest and fastest path.

When you see the operation process of the router, you will feel very familiar. That is the important feature of the blockchain later. The significance of understanding the router lies in the important features of the blockchain. It has been implemented on the router in 1984. For the router, even if the node device is damaged or attacked by hackers, it will not affect the transmission of the entire Internet information.

3. The B/S (C/S) architecture that was born with the World Wide Web: the opponent of the blockchain and the target of attempted subversion

The World Wide Web is referred to as the Web and is divided into Web clients and server. All updated information is only modified on the Web server. Thousands, tens of thousands, or even tens of millions of other client computers do not retain the information and only obtain the information data when accessing the server. This structure is often called the Internet B/S architecture is a centralized architecture. This architecture is also the most important architecture of the current Internet. Internet giants such as Google, Facebook, Tencent, Alibaba, and Amazon have all adopted this architecture.

Understanding the B/S architecture will be of great significance to the subsequent understanding of blockchain technology. The B/S architecture is that data is only stored in the central server, and all other computers obtain information from the server. Blockchain technology has tens of millions of computers without a center, and all data will be synchronized to all computers. This is the core of blockchain technology.

4. Peer-to-Peer Network (P2P): Blockchain The father of the chain and its technical basis

Peer-to-peer network P2P is another Internet infrastructure corresponding to C/S (B/S). Its characteristic is that multiple computers connected to each other are connected to each other. In a peer-to-peer position, there is no distinction between master and slave. A computer can be used as a server, setting shared resources for use by other computers in the network, and as a workstation.

Napster is one of the earliest P2P systems, mainly used for music resource sharing. Napster cannot be regarded as a true peer-to-peer network system. On March 14, 2000, a message was posted on the mailing list of the underground hacker site Slashdot in the United States, saying that AOL's Nullsoft department had released Gnutella, an open source Napster clone software.

In GnutellaIn the distributed peer-to-peer network model, each networked computer is functionally equivalent, serving as both a client and a server. Therefore, Gnutella is called the first true peer-to-peer network architecture.

In the past 20 years, some Internet technology giants such as Microsoft and IBM, as well as liberals, hackers, and even criminals who infringe intellectual property rights, have continued to promote the development of peer-to-peer networks. Of course, those on the Internet want to strengthen information sharing. The idealists also put a lot of enthusiasm into peer-to-peer networks. Blockchain is a software application based on a peer-to-peer network architecture. It is a benchmark application for peer-to-peer networks trying to break out from the silence of the past.

5. Hash algorithm: the key to generating Bitcoin and tokens (tokens)

The hash algorithm converts numbers of any length into fixed-length values ​​using a hash function. Algorithms, famous hash functions such as: MD4, MD5, SHS, etc. It is a member of the family of cryptographic functions defined by the American National Institute of Standards and Technology.

This family of algorithms is crucial to the functioning of the entire world. From Internet application stores, emails, anti-virus software, to browsers, etc., all of them are using secure hashing algorithms. It can determine whether Internet users have downloaded what they want, and it can also determine whether Internet users are involved in man-in-the-middle attacks or network attacks. Victim of a phishing attack.

The process of blockchain and its application to generate new coins from Bitcoin or other virtual currencies is to use the function of the hash algorithm to perform operations to obtain numbers that meet the format requirements, and then the blockchain program gives Bitcoin rewards.

Mining, including Bitcoin and tokens, is actually a small mathematical game built with a hash algorithm. However, because of the fierce competition, people all over the world used powerful servers to perform calculations in order to get the rewards first. As a result, many computers on the Internet participated in this little mathematical game, which even consumed more than 40% of the electricity in some countries.

2. The birth and technical core of blockchain

The birth of blockchain should be the most unusual and mysterious invention and technology in the history of human science, because in addition to blockchain, to So far, there is no major invention in the history of modern science whose inventor cannot be found.

On October 31, 2008, Bitcoin founder Satoshi Nakamoto (pseudonym) published a paper on the cryptography mailing group - "Bitcoin: A Peer-to-Peer Electronic Cash System". In this paper, the author claims to have invented a new electronic currency system that is not controlled by governments or institutions. Blockchain technology is the basis for supporting the operation of Bitcoin.

The preprint address of the paper is at http://www.bitcoin.org/bitcoin.pdf. From an academic point of view, this paper is far from a qualified paper. The main body of the article is composed of 8 flow charts. It is composed of corresponding explanatory text, no nouns and terms are defined, and the format of the paper is also very irregular.

2In January 2009, Satoshi Nakamoto released an application case for blockchain - open source software for the Bitcoin system - on the SourceForge website. After the open source software was released, it was said that Satoshi Nakamoto had mined approximately 1 million Bitcoins. A week later, Nakamoto Satoshi sent 10 Bitcoins to cryptography expert Hal Finney, which became the first transaction in Bitcoin history. With the booming development of Bitcoin, research on blockchain technology has also begun to show explosive growth.

It is indeed difficult to fully and clearly explain the blockchain to the public. We use Bitcoin as the object to introduce the technical characteristics of the blockchain as simply as possible but in depth.

1. Blockchain is a peer-to-peer network (P2P) software application

As we mentioned before, at the beginning of the 21st century, the Internet formed two major types of applications. Architecture, centralized B/S architecture and non-centered peer-to-peer (P2P) architecture. Many Internet giants such as Alibaba, Sina, Amazon, etc. all have centralized B/S architecture. Simply put, it is data Put it in a giant server, and our ordinary users can access the servers of Alibaba, Sina and other websites through mobile phones and personal computers.

Since the beginning of the 21st century, there have been many software applications for freely sharing music, videos, and paper materials. Most of them use a peer-to-peer network (P2P) architecture, that is, there is no central server, everyone's personal computer They are all servers and clients, with equal status. However, this type of application has never become popular. The main reasons are large resource consumption and intellectual copyright issues. Blockchain is a software application in this field.

2. Blockchain is a peer-to-peer network (P2P) software application that synchronizes information across the entire network

Peer-to-peer networks also have many application methods. In many cases, everyone is not required to Each computer keeps the same information. Everyone only stores the information they need, and downloads it to other computers when needed.

However, in order to support Bitcoin financial transactions, the blockchain requires that every transaction that occurs must be written into historical transaction records and change information be sent to all computers with Bitcoin programs installed. Every computer with Bitcoin software installed maintains the latest and complete Bitcoin historical transaction information.

The characteristics of blockchain's network-wide synchronization and network-wide backup are often referred to as blockchain information security, and the source cannot be changed. Although it is still not absolutely safe in practice, when the number of users is very large, it does have certain security advantages in preventing information tampering.

3. Blockchain is a peer-to-peer network (P2P) software application that uses a hash algorithm to generate "tokens" to synchronize information across the entire network

Area The first application of the blockchain was the famous Bitcoin. When discussing Bitcoin, a term that is often mentioned is "mining". So what exactly is mining?

The vivid metaphor is that the blockchain program gives miners (Player) 256 coins, numbered 1, 2, 3...256. Each time a Hash operation is performed, it is like tossing a coin. 256 coins are thrown out at the same time. After landing, if all the coins with the first 70 numbers happen to be heads, up. The miner can tell the blockchain program this number, and the blockchain will reward the miner with 50 Bitcoins.

From the perspective of software programs, Bitcoin mining is a mathematical game built using the hash SHA256 function. The blockchain first stipulates a winning mode in this small game: a 256-bit hash number is given, but the last 70 bits of the hash number are all 0, and then the player (miner) continuously enters various numbers. Give the hash SHA256 function and see if you can use this function to get a number with 70 zeros. If you find one, the blockchain program will reward the player with 50 Bitcoins. Actual mining and rewards are more complex, but the above example expresses the core process of mining and obtaining Bitcoin.

When Bitcoin was born in 2009, each bounty was 50 Bitcoins. Ten minutes after its birth, the first batch of 50 Bitcoins was generated, and the total currency amount at this time was 50. Subsequently, Bitcoin increased at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the bounty is halved to 25. When the total amount reaches 15.75 million (new output is 5.25 million, which is 50% of 1050), the bounty is further halved to 12.5. According to the design of the Bitcoin program, the total number of Bitcoins is 21 million.

From the above introduction, Bitcoin can be seen as a guessing game based on a peer-to-peer network architecture. The Bitcoin information rewarded for each correct guess will be transmitted to all players and recorded. into each player's history database.

4. Smart contracts, tokens, ICOs and blockchain basic platforms generated by blockchain technology due to the rise of Bitcoin

From the above introduction, Bitcoin technology It is not a new technology falling from the sky, but a clever combination of various original Internet technologies, such as peer-to-peer network architecture, network-wide synchronization of routing, and network security encryption technology. It can be regarded as a combination of innovative algorithm games. .

Because Bitcoin can be exchanged for legal currency, purchased in kind, and made huge profits through appreciation, the whole world is not calm. With the attitude that if you can do it, I can do it, many people have created their own imitation Bitcoin software applications. At the same time, taking advantage of the difficulty for the government to regulate peer-to-peer networks, various altcoins exploded together with Bitcoin. There have been many incidents of fraud and absconding, which have gradually attracted the attention of governments around the world.

Blockchain basic platform: It is still quite technically difficult to create currency using the blockchain technology framework. At this time, basic technology platforms such as Ethereum, the blockchain basic platform, have emerged, making it convenient for ordinary people. Create a "Bitcoin"-like software program, each showing its magical powers, inviting people to join the game to mine coins, speculate on coins, and gain profits from it.

Tokens or Tokens: If each "Bitcoin" or "Altcoin" uses a hash algorithm to create a guessing game and generates its own "currency", this "currency" is collectively referred to as "Token" or "Token" currency".

ICO: Since Bitcoin and Ethereum have been exchanged with the legal currencies of various countries, when other new virtual currencies are issued, only Bitcoin and Ethereum are allowed to purchase the new issued coins. This process of issuing coins It’s called ICO. The emergence of ICO has amplified the transaction volume of Bitcoin and Ethereum. At the same time, many ICO projects are completely based on nihilistic projects, resulting in a large number of frequent fraud cases. This further deepens society’s negative understanding of virtual currencies generated by blockchain.

Smart contract: It can be seen as a software function on the blockchain. It is a program that assists various virtual currency transactions on the blockchain. The specific function is like the fund custody of Alipay on Taobao. When a user receives goods and confirms them on Alipay, the funds are automatically paid to the buyer and owner. Smart contracts also assume this intermediary payment function in blockchain applications such as Bitcoin.

3. The historical status and future prospects of blockchain technology in the Internet

1. Where does blockchain stand in Internet technology? It is a new software and architecture at the top level.

We mentioned in the previous introduction to TCP/IP that blockchain, like browsers, QQ, WeChat, online game software, mobile APPs, etc., is a software form of the top layer of the Internet - the application layer. . Its operation still relies on the TCP/IP architecture system to transmit data. But unlike most application layer software, it does not adopt the central software architecture of C/S (B/S). Instead, an unusual peer-to-peer network architecture is adopted. From this point of view, blockchain cannot subvert the Internet infrastructure.

2. Who does blockchain want to subvert? Want to subvert the B/S (C/S) structure of the World Wide Web.

It attempts to subvert the B/S, C/S structure of the World Wide Web, which was born in 1989. Said before. Since 1989, European physicist Tim Berners-Lee invented the World Wide Web and gave up applying for a patent. In the past nearly 30 years, companies including Google, Amazon, Facebook, Alibaba, Internet, Tencent and other companies have used the B/S (C/S) structure of the World Wide Web to grow into Internet giants.

In their headquarters, a powerful central server cluster was established to store massive amounts of data. Hundreds of millions of users obtained the data they needed from the giant servers. This also led to the emergence of cloud computing, and then the Internet giants Open up your unused central server resources to further absorb data from enterprises, governments, and individuals. Centralized Internet giants have an increasing influence on the world, countries, and Internet users.

The goal of blockchain is to try to reduce the influence of Internet giants by distributing data to each Internet user’s computer. It can be seen that the real opponent of blockchain and what it wants to subvert is 1The B/S (C/S) structure was born in 1990. But whether it can be subverted depends on its technical advantages and bottlenecks.

3. Technical flaws of blockchain: dilemmas caused by the pursuit of complete equality and freedom

The technical flaws of blockchain first come from its peer-to-peer network architecture. For example For example, Taobao currently has a B/S structure, and massive data is stored in the Taobao server cluster computer room. Hundreds of millions of consumers access the Taobao server website through their browsers to obtain the latest information and historical information.

If blockchain technology is used, hundreds of millions of people will retain a complete Taobao database on their personal computers or mobile phones. Every time a transaction occurs, it will be synchronized to hundreds of millions of other users. This is completely unachievable in reality. The amount of data transferred and stored is too large. It is equivalent to setting up and running hundreds of millions of Taobao websites at the same time.

Therefore, blockchain cannot be applied to projects with large amounts of data, and even smaller website projects will have difficulty using blockchain. By 2018, Bitcoin had been running for nearly 10 years, and the accumulated transaction data had brought the entire system to collapse.

So the blockchain has adopted many alternative methods, such as establishing relay nodes and lightning nodes. These two concepts can also make people confused. In layman’s terms, the blockchain will ask it for The subversive object B/S structure has been studied, and a data server center has been established to become the relay node of the blockchain, which can also be accessed with a browser-like terminal. This is the lightning node of the blockchain.

This change can alleviate the technical shortcomings of the blockchain, but it does make the blockchain what it opposes, centralization. It can be seen that pure blockchain technology has major flaws due to its technical characteristics and cannot be widely used like the World Wide Web. If the technology is upgraded and some parts adopt a B/S (C/S) structure, the blockchain will become centralized. The information node no longer maintains the dream when it was born.

4. Looking at the future prospects of blockchain from the Internet brain model

We know that the Internet generally refers to the Internet that connects computer networks around the world. On this basis The development of a global Internet network covering the whole world is called the Internet, which is a network structure that is interconnected.

Since the birth of the Internet in 1969, humans have innovated in the Internet field from different directions, and there is no unified plan to build the Internet into a structure. When the wheel of time reaches 2017, with the advent of artificial intelligence, With the vigorous development of science and technology such as the Internet of Things, big data, cloud computing, robots, virtual reality, and the industrial Internet, when humans look up to see the giant systems they have created, the model and architecture of the Internet brain have become increasingly clear.

Through nearly 20 years of development, relying on the B/S and C/S structures of the World Wide Web, Tencent QQ, WeChat, Facebook, Weibo, and Twitter Amazon have developed structures similar to neuron networks. Internet devices, especially personal computers and mobile phones, use software on the devicePersonal data and functional space are mapped on the giant's central server, and friends can be added to each other to communicate and transfer information. Internet giants continue to optimize the software versions of hundreds of millions of terminals through software upgrades in central server clusters. In the neurological system, this is a standard central nervous system structure.

The birth of the blockchain provides another neuron model. Instead of uniformly managing neurons in the centralized services of giants, each terminal, including personal computers and personal mobile phones, becomes an independent neuron node. , retaining an independent data space and synchronizing mutual information. In the neurological system, this is a distributed neural structure with no center and multiple neural nodes.

Interestingly, these two different types of neural structures appear in the development of the nervous system. In lower organisms, blockchain-like neural structures have appeared. There are multiple ganglia with the same functions, all of which can command body activities and reactions. However, as organisms evolve, these ganglia gradually merge. When they evolve into higher In biology, the central nervous system appeared, which contains a large number of neurons that interact with each other.

4. Judgment on the future status of blockchain in the Internet

1. Understanding of Bitcoin: a guessing game based on peer-to-peer network architecture (P2P), Through clever financial and public opinion operations, it has become a "world currency" that is not subject to government supervision.

2. Understanding of blockchain: a peer-to-peer (P2P) software application that uses a hash algorithm to generate "tokens" to synchronize information across the entire network.

3. Blockchain has specific uses, such as large-scale election voting, large-scale gambling, financial transactions that circumvent government financial supervision, etc. It still has irreplaceable uses.

4. In more cases, blockchain technology will rely on the B/S and C/S structures of the Internet to achieve functional expansion, but overall it is still a supplement to the existing technology of the Internet. Most of the application scenarios currently envisaged by blockchain can be implemented using B/S and C/S structures, with higher efficiency and more mature technology.

5. Whether from the perspective of information transmission efficiency and resource consumption, or from the evolution of the nervous system, blockchain cannot become the mainstream architecture of the Internet, let alone a subversive and revolutionary leader of the future Internet.

6. Of course, Internet giants developed with B/S and C/S structures also have their problems, but these can be gradually solved through commercial and political methods in the future.

❾ Ant Financial has become the only Chinese founding company due to blockchain

Recently, the Massachusetts Institute of Technology in the United States announced that it will cooperate with several top technology companies around the world on July 18, 2018. Jointly launched the MIT Financial Technology Laboratory, the main research directions include blockchain development, privacy security, databases, encryption systems, etc. Ant Financial is the only Chinese founding company.

In an exclusive interview, Jiang Guofei, head of Ant Technology LaboratoryA sentence said in the article is also very illustrative: The former NEC (Nihon Electric) technology VP who has traveled in Tokyo Bay and New York Bay in the past 15 years said that in terms of independent research and development of cutting-edge core technologies such as blockchain, China and The United States is almost standing on the same starting line, which is a sight that has never been seen before. "Whether it's Tokyo Bay, New York Bay or San Francisco Bay, they all emerged from the surge in comprehensive national power of Japan and the United States respectively. Now it's China time, so I'm back."

Content source Phoenix Net

❿ What is the most understandable explanation of blockchain

Blockchain has become very popular in recent years, with attention and exposure continuing to rise. Many domestic giant companies have launched double They embrace blockchain as a great disruptive innovation in the Internet era, and swarm around to study how to turn blockchain into a tool for them to seize business opportunities.

So, what exactly is blockchain technology? You can recognize each Chinese character individually, but you don't know what they mean when put together. For the blockchain, which everyone thinks is extremely mysterious, now there is a most understandable explanation.

What is blockchain? Let’s first use the love story that everyone loves to talk about as a simple example.

Build a simple blockchain model, then the following situations will occur when falling in love in this blockchain model.

In the future, all the men and women of the right age will fall in love and the whole process of commitment to marriage will be agreed upon by all other men and women of the right age, and all the stories that happen between the two people together will form a block.

All other men and women are the chain. If a third party intervenes or you violate your partner, others can see it, and you will never find a partner in the future.

To be precise, the blockchain is a "full center" system, that is, every node on the chain is the center.

Men and women in trial marriage fall in love, show off their love on friends, promise to love each other for a lifetime and be known by all other marriageable men and women is the application of blockchain. If one day one party breaks their promise, don't think that deleting the photos will be useful, because everything is recorded by all marriageable men and women.

It cannot be deleted or changed, this is blockchain technology.

If this technology is applied to the business field, its "purifying" effect on the business environment will be imaginable, which explains why blockchain technology is so popular.

The Internet has entered the ecological era, and its applications have penetrated into many fields such as financial services, Internet of Things, supply chain management, digital asset transactions, and e-commerce. The emergence of blockchain has transformed the development of the Internet from the information Internet to the value Internet and the order Internet. Its "distributed business" model with the sharing economy and value link as the main features will give birth to a large number of new innovative cooperation scenarios across institutions and build The establishment of a new industrial ecosystem with blockchain technology as the virtual center will have a profound impact on economic and social governance and industrial transformation.Revolution and innovation have a disruptive impact.

On this basis, the Caoxin, Caoshang, Caodao and Caoai projects built by Caoliu Commune based on blockchain technology are composed of founding nodes, institutional nodes, partner nodes, and first-level nodes. , second-level and below nodes, and ordinary members constitute a new Internet ecosystem, outlining an environment that is fully in line with today's national policies and allows users to have the opportunity to participate in blockchain technology. Users can obtain grass coins by participating in community work. Users The obtained grass coins can be exchanged for Caoxin CT or traded on the trading platform to realize the circulation and appreciation of grass coins.

This is the first blockchain technology to be applied to the real industry ecosystem. It is also an example of financial thinking with Chinese characteristics that is deeply adapted to the commercial and financial environment based on China’s national conditions and uses blockchain technology to transform the traditional commercial and financial system. A historic innovation in decentralized reconstruction.