blockchain

2017-07-01 saisai 马拉松竞赛

Li xiaolai has a label of the richest bitcoin owner. At that time, I knew of the bitcoin, but it was just a strange word for me. Recently, I hear more and more about bitcoin and blockchain. I try to learn it by reading books and listening to online class. I get excited about it. Blockchain is an advanced technology which may change the Internet totally.

In daily life, we use Alipay or wechat to pay the bill. In this process, Alipay or wechat works as a third role to guarantee the trade. But now, there is a new way to pay, that is the blockchain.

Blockchain is a like a big ledger which holds all the money, every computer involved in the blockchain can contribute to the ledger. Now imagine that A sends 10 yuan to B. A sends the money and B receives the money, every computer involved in blockchain system can see the “send” and “receive” action. All the computers compete to record this deal, besides, the computers fight for the privilege to pack all the trade data during each 10- minute. The computer, which wins the game, packs all the trade data, the packed data is called a block.

Every block will have a number, a former block combines with a later block, eventually forms a chain in order, that is blockchain. The computer who packed the data will be rewarded with bitcoins.

In the world of blockchain, we can send money directly to others, there is no need to use a third platform. There is no center, it is a distributed system, every computer can record and pack the data. The most important, once the block is formed, there is nearly no hope to change the data. So the blockchain is a distributed, open, immutable database.

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