I have never borrowed money from blockchain
the integration of P2P instry and "blockchain" can not only make use of the unique advantages of "blockchain", but also make the whole instry more "transparent", injecting fresh blood into the whole instry. At the same time, as time goes on, blockchain technology may exist in a large ecosystem with both centralized and decentralized modes. In the future world, there may be considerable complementary space for both centralized and decentralized models
however, at present, most of them just stay in the theoretical stage, and the actual application scenarios do not appear. However, the combination of digital currency and tea is indeed a relatively novel project. Puyin group launched the tea based digital currency Puyin.
Let's suppose villagers Lao Wang and Xiao Li. Lao Wang borrowed some money from Xiao Li, who wrote it in an IOU signed by both parties. A few days later, Lao Wang denied the existence of borrowing money and claimed that Xiao Li forged the paper. Xiao Li can't argue because he finds it difficult to prove that Lao Wang actually owes him money
in this example, Lao Wang and Xiao Li are two nodes
now assuming the same scenario, there are many pairs of people trading with each other in the village. The only evidence for each pair is the IOU. If one party fails, it will be difficult to do so. Seeing this scene, the village head came up with a solution. He suggested using a common notebook for the whole village to record all the transactions. Due to the high prestige of the village head, the villagers unanimously decided to let the village head keep this important transaction book. Each transaction, the villagers go to the village head's home, let the village head witness and record, each transaction is written into a notebook, and then safely saved. That notebook can be called a database
because this notebook is very important, the village head locked it in the safe. However, there are always some problems. Sometimes, the village head will accidentally sprinkle ink on the paper, making some transaction records illegible. This is called a single point of failure. The thief knows that there is an important notebook in the safe of the village head's house. He tries his best to steal it. This is called hacking
until one day, the village head's son owed others a lot of money, so the village head secretly deleted his son's debt entry. In this way, the village head's son "does not owe money."
when the villagers knew this, they began to question the fairness and authority of the village head. So some people put forward a new idea:
abolish the power of the village head, which is called decentralization. Let all villagers keep a notebook, and the transaction records are copied and distributed, which is called distributed database. Therefore, if there are n people in the village, there are n notebooks, that is, n nodes. Every time there is a trade between any two people, all the people in the village get together and record it in their notebooks. And no one can cover the sky. This is called decentralization
they also decided that they would never delete the mentioned transactions from their notebooks, which is irreversible. For example, Lao Wang borrowed a sum of money from Xiao Li before, but in the twinkling of an eye, he wants to return the money. Then the transaction book will not delete the previous borrowing record, but write a new repayment record, so there are two records
next, let's try to break this rule. What if we bribe Lao Wang to change his notebook? It's not feasible, because the next time the villagers meet, they find that Lao Wang's notebook is different from everyone else's, so the villagers notice that Lao Wang may be engaged in an indescribable transaction, and decide to abolish Lao Wang's transaction record and kick Lao Wang out of the organization
What if you try to bribe all the villagers? It's too expensive
the characteristic of this model is that greedy people need to pay a lot to attack the rules. He will find it more profitable to follow the rules
a smart child in the village suggested that each transaction data be called "block" and linked into a "chain" in chronological order, which is called blockchain
blockchain projects, blockchain media, or what? Another possibility is digital currency. In any case, you'd better make a clear understanding of the blockchain before you decide. There are also a lot of people who cheat by using blockchain gimmicks. You have to distinguish them
you can learn about blockchain in some places, such as cryptography, finance and so on.
According to reports, the coin circle, which has been silent for a long time e to the bear market, has been broken recently. This time, Li Xiaolai, who is known as the "richest man in the coin circle" by the outside world, is still standing at the muzzle of the gun
on July 4, 2018, a recording of Li Xiaolai's private conversation spread on the Internet. In this conversation, which lasted for more than 50 minutes, Li Xiaolai denounced the well-known figures and blockchain projects in the coin circle in a vulgar tone, and told the interviewees about his investment tactics as a winner
this recording sounds like an explosion of information, which once again pushed Li Xiaolai to the forefront of public opinion. Due to the sensitive words mentioned in the recording, such as "don't blindly believe in value investment", "sell air currency" and so on, Li Xiaolai was identified as the banker of "cutting leeks" in the currency circle in the later public opinion
at the same time, as a former New Oriental teacher and best-selling author, Li Xiaolai has many fans after entering the blockchain instry. But in that recording, Li Xiaolai thinks that his IP and traffic are very important in the coin circle, while disdaining blind followers
What kind of person is the real Li Xiaolai? What is his way of accumulating real wealth and investing in blockchain? What kind of world is the blockchain instry todayon July 12, 2018, Li Xiaolai received an exclusive interview with the media and responded to questions from the outside world
media: who are you most optimistic about in the blockchain instry
Li Xiaolai: Wu Jihan in mainland China. I think this person is a wounded and bloody soldier in the blockchain instry. About three years ago, I told my friends about it. If there is an opponent in the world that I may not be able to fight, it is Wu Jihan. It's just that we're not on the same track, so it's also my luck
media: your little Luo Yonghao is working hard in instry, and you are working in blockchain. What do you think of the relationship between blockchain and entities
Li Xiaolai: finance is the embodiment of real economy. Finance cannot be separated from the existence of real economy. Blockchain will certainly drive the real instry, but it is still unknown how to drive itI admire Luo Yonghao's work in the real instry. He has a higher sense of happiness than me, because making a mobile phone has a much greater sense of achievement than I do in an unknown instry, and they are more easily recognized by the society
media: did Luo Yonghao comfort you after the recording leakage
Li Xiaolai: our habit is to keep quiet when we are in trouble, because how to comfort others is a very difficult thing. But then we'll talk to each other about what happened
Li Xiaolai: do you have any other questions? Today is my birthday. I'll have dinner with my wife latercontent source: phoenix.com
1 - the sending node broadcasts new data records to the whole network
2 - the receiving node checks the received data record information
3 - all receiving nodes in the whole network implement consensus algorithm for blocks
4-blocks are formally included in the blockchain for storage after the consensus algorithm process
nodes always regard the longest blockchain as the right one, and continue to verify and extend the chain in turn.
the current development of blockchain is still OK. Let's take a few recent examples: on June 14, the white paper on the application of blockchain judicial deposit, which was led by the information center of the high people's court and co sponsored by a total of 25 units, was officially released, and blockchain technology has made achievements in judicial deposit; Recently, visa launched a blockchain payment network to enter the $125 trillion cross-border payment market; Recently, Fuzhou has also issued "three measures on accelerating the development of blockchain instry" to promote the application of blockchain technology
further, there are blockchain electronic invoice, blockchain traceability and so on, so there is no future. Password finance focuses on blockchain, you can learn more here.
Softbank group was founded by sun Zhengyi in Japan in 1981 and listed in Japan in 1994. It is a comprehensive venture capital company, focusing on investment in IT instry, including network and telecommunication. Softbank has invested in more than 600 companies around the world, and has majority shares in more than 300 major IT companies around the world< Sun Zhengyi sold $80 billion of Softbank's assets to rece debt as early as March 23, 2020, Softbank group announced that it was seeking to sell or monetize its assets of up to 4.5 trillion yen (about 41 billion US dollars) to buy back 2 trillion yen of shares and rece debt Third, it is very common for giant companies to sell assets to offset debts. not only does Softbank group sell assets, but also Wang Jianlin, the former richest man in China, once sold Wanda Plaza business and Wanda hotel business under his own company's name, in order to repay the company's debts for quick cash flow recovery