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What is blockchain

Blockchain technology refers to a decentralized infrastructure composed of multiple nodes based on cryptographic chain block structure, distributed node consensus protocol, P2P network (peer-to-peer network) communication technology and smart contract technology. Blockchain technology is an integration of several mature technologies. Blockchain technology originates from the underlying framework of the Bitcoin system. It is a distributed storage scheme with the characteristics of decentralization 39bet-xì dách-phỏm miền bắc-tiến lên miền bắc-xóc đĩa-game bắn cá, distrust, collective maintenance, time series data, programmability, and tamper-proof. It has great historical significance for the financial field and even the whole macro-social system. Blockchain is integrated by some mature technologies. At present, there are mainly three types of blockchain: public chain, alliance chain and private chain. ​The data layer, network layer, consensus layer, incentive layer, contract layer, and application layer constitute the underlying infrastructure of blockchain. The major development platforms are Ethereum and Hyperledger.

For example,​

A group of people were working on floor tiles and each one of them was paid according to the number of bricks they carried, and they counted each other first, but it turned out that everyone had to not only sheet bricks but also take the time to keep track of them, and most of them were other people's. In order to improve the efficiency of work, at this time to find a counting clerk, special record, unified in the afternoon to publish their respective numbers for everyone to check. If everyone agreed that there is no problem with the number, then this is all the work of the day.

c3668044e9ddd9d9acaa417d1d94abe6According to this process, the team will be out of a number of record every day, we can see each record as a block, the block can be viewed as each individual record information collection, if published once a day, it is a collection of all move brick records today, if published an hour once, that is the all in one hour move brick record collection, This corresponds to one block per day and one block per hour. A chain links records from two adjacent days. The quantity recorded yesterday is the same as the initial quantity recorded today. The quantity recorded yesterday and the quantity recorded today are connected by carrying forward the balance, which is the chain connecting the two records, that is, the chain in the blockchain.

How does a recorder get revenue? No one wants to be a recorder without revenue. So we discuss, every time to complete a record to record a dollar, that is, the percentage of the record. If the recorder records 500 entries a day, his income is 500 yuan. At this time, Xiao Li, who moved the bricks, was not happy, so you kept an account of more than 500 yuan a day, and I worked very hard to move the bricks, and earned more than 100 yuan a day. Later, more and more people found it easy to be a recorder. Everyone wanted to be a recorder. And then you decide, you flip a coin and you decide who's going to be the scribe, and that's the consensus mechanism. In the blockchain we use a consensus mechanism to select the recorder.

Some people don't want to go to release appears crowded people see record results, then you can directly copy copy a man who has a good record in advance as a result, you can make private copies each other, which in essence is the user point-to-point transmission of information to users, and users can connect with each other, eventually connect together to form a network, the information transfer mode is also block chain mode of network routing, Everyone is both the receiver and the transmitter of information. In the process of dissemination, everyone is a node of information. If someone wants to tamper with the record, it is almost impossible.

User to user is also the P2P network routing mode. The consensus mechanism is used to select the packers. Everyone has the decentralized and distributed characteristics of information, which is open and transparent and difficult to tamper with.

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