Renren's blockchain has turned over

1. As a kind of decentralized database, blockchain has the characteristics of openness, distribution and irreversibility. As an electronic data storage platform, blockchain has the advantages of low cost, high efficiency and stability. At present, blockchain has been applied in many fields and has brought many changes to our life. Now many electronic contract platforms, such as Fada This kind of blockchain technology has been applied in the chain of evidence, and the blockchain technology has also been accepted by the court

2. Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
blockchain technology is considered to be the next generation of disruptive core technology after steam engine, power and Internet. If the steam engine has released people's proctivity, the power has solved people's basic living needs, and the Internet has completely changed the way of information transmission, then the blockchain, as a machine for building trust, may completely change the way of value transmission of the whole human society
first, the essence of blockchain is a distributed public ledger
take a popular example to explain that Mr. w's family, including Mr. W, Mrs. W, Mr. w's grandfather and Mrs. w's grandmother, all record their expenses in their respective books. Because Mr. w's family doesn't trust each other. Mr. W is diligent in raising his wife every month, but Mrs. w may receive 1000 yuan, but she receives 100 yuan. Isn't that a big loss
how to solve this problem with blockchain
if Mr. w gives Mrs. w $1000 one day, he just shouts at the whole family that Mr. w gives Mrs. w $1000. Please write down "Mr. w gives Mrs. w $1000" on their respective account books
so everyone in Mr. w's family becomes a node, and every transaction of Mr. w's family is recorded by everyone (each node)
every night who washes the dishes (proof of workload) can settle the bill in the public ledger, and there is a reward for washing the dishes. A new transaction must be added to the universally recognized ledger of the previous day, and other people will also participate in verifying the transactions of the day
Second, it seems very simple, but blockchain may bring revolutionary changes to human society
1. Machine trust
machine trust is actually trust without trust. For the first time in human history, a large-scale cooperation network unprecedented on earth can be established at near zero cost, which is bound to be a great mass movement
2. Value transfer
the emergence of the Internet has made the means of information dissemination achieve a leap, and information has realized efficient flow, but the efficiency of Internet value transfer is still very slow. At present, e-money on the Internet is still the traditional paper money in essence, and transnational payment is still a big problem
the birth of blockchain is the beginning of human value transmission network. It will enable people to transfer value as conveniently and cheaply as information on the Internet, which can be expressed as capital, assets or other forms
3. Smart contract
smart contract can replace all paper contracts, and more importantly, blockchain can perfectly connect the physical world and virtual world. The perfect combination of blockchain, Internet of things and artificial intelligence makes the imagination more huge
the blockchain itself is actually a super platform. The commercial characteristics of building machine trust, value transfer and smart contract on the blockchain are: ① close to zero trust cost. ② The marginal cost of constructing and trading assets tends to zero
so Mark Anderson, a web browser pioneer, said: in 20 years' time, we will talk about blockchain as we talk about the Internet today.

3. Relatively speaking, Xu Mingxing's entrepreneurial path should not be particularly complicated. He has always been a technical talent, so this should be the reason why he can take the lead in the field of blockchain. He is a master, after leaving school, went to Yahoo China, in charge of search technology. Later, he and Lin Yaocheng set up Douding. Com, and then he set up okgroup

4. Mainly depends on the operation content and project
the application of blockchain technology itself is not illegal. At present, ant financial services, Tencent and network all have blockchain technology support

5. How much do you know about blockchain. And a scam. Go to the Internet to see if it is recognized. Don't be silly, some people earn a lot of money, you still doubt. The emergence of a new thing is not to believe, but to understand

at the beginning, some people said that mobile phones could make a long-distance call. Did you also say that it was impossible

6. It takes 57 days for rx470 and 100 days for 1070. I hope you can get rid of this idea. Now the appreciation of the virtual coin country is choking, so we need to be cautious< br />

7. A virtual currency on the Internet

can be used to make money for a period of time

it can be converted into RMB by mining or other transactions

but China does not support it

8.

On August 10, the country's first blockchain electronic invoice was launched in Shenzhen. Shenzhen International Trade revolving restaurant issued the country's first blockchain electronic invoice, declaring that Shenzhen has become the first pilot city of blockchain electronic invoice, which also means that the era of blockchain is officially opened for tax service

blockchain e-invoice has the characteristics of complete traceability in the whole process and tamper proof information, which is consistent with the invoice logic, and can effectively avoid false invoices and improve the invoice supervision process. Blockchain e-invoice will connect each invoice stakeholder, and can trace the source, authenticity, entry and other information of the invoice, so as to solve the problems of one vote multi reporting, false reporting and false offset, and hard to verify the authenticity in the process of invoice circulation. In addition, it has the advantages of recing cost, simplifying process, ensuring data security and privacy

9. You can go to the auction house
but it's very expensive, so it's not recommended

when you are practicing, you can look for and dig while working< If it's fast food,
you have to buy it,
or spend your time prospecting in low-level areas,

improve the mining level.

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