Blockchain wife

1.

blockchain is an important concept of bitcoin. It is essentially a disintermediated database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it can not be tampered with and forged by cryptography

broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing method to program and operate data by using intelligent contract composed of automated script code

extended data:

the evolution mode of blockchain is as follows:

& 9642; Blockchain 1.0 - digital currency

▪ Blockchain 2.0 - digital assets and smart contracts

▪ Blockchain 3.0 - Implementation of distributed applications in various instries

blockchain features:

1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system

2. Openness. The system is open. In addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all. Anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Autonomy. Blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work

The information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid. Therefore, the data stability and reliability of the blockchain are extremely high

5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit

2. Blockchain is a technology, but it is not a single technology, but the result of the integration of a variety of technologies, including cryptography, mathematics, economics, network science and so on. You can think of it as a distributed shared accounting technology, or as a database, but the database is jointly maintained by all nodes in the chain, and each node has an account book. Because the account books of all nodes are consistent, different nodes can trust each other, and there is no doubt about the data, so we all say that the blockchain has realized trust technically. For detailed professional technology, you can consult some professional technology companies, such as Jinbo technology, which focuses on the development of blockchain related procts, professional R & D team and perfect after-sales service, and you can consult by telephone.

3. 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.

4. I also saw the name today. Curious, I searched the Internet and found that it was similar to the zodiac I play now. It's a new replica. Stability is a mystery. I made a little money about one month after contacting the zodiac. However, we can't put all the funds into one set and start with a score.

5.

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 today

on 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 it

I 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 later

content source: phoenix.com

6.

To put it simply, blockchain is a decentralized system, with & lt; Ledger & quot; For example, traditional & lt; Ledger & quot; It is controlled by the center, while the blockchain & lt; Ledger & quot; Without a center, everyone involved can be & lt; Ledger & quot; Record

blockchain generally refers to public blockchain, family members, private blockchain and instry blockchain{ Conclusion< p> Blockchain technology provides a fair platform for the public. Xiaobian believes that the application scope of blockchain technology will be wider and wider

finally, readers are welcome to leave any comments on blockchain