对于区块链我也是最近才开始了解的，刚开始感觉很新鲜，也是被”比特币“、“挖矿”这些科技金融新名词给吸引，于是乎我就开始从网上搜寻各种资料来满足我的求知欲。直到有一天有人问我什么是区块链，我竟有点哑口无言，面对一个非计算机专业的法律界人士，我不知道该如何作答。我就开始问自己到底什么是区块链呢?下面这个故事告诉你。
I've only recently learned about the block chain, which was fresh at first and attracted by the new term "bitcoin" and "mining" of science and technology finance, so I started searching for information from the Internet to satisfy my needs. Until one day someone asked me what a block chain was, I was a little dumb, and I didn't know how to answer to a non-computer professional. I began to ask myself what the chain was. The next story tells you.
村长老王的故事。一天张三借给李四300块钱，可是张三怕李四赖账不还，于是乎就找来村长老王，让老王作证并在老王的账本上记录，张三借给李四300块，村长老王德高望重，公信力极强，慢慢大家都来找老王记账。
The story of the village elders. A third loan to Lee for $4,300 a day, but he was afraid that he would not pay back, he came to the village elders and asked the king to testify and record it on his books. Zhang loaned to Lee for $4,300, the village elders were highly respected and credible, and everybody came to see the old king's books.
一天老王上镇上开会，就把记账这活交给了他儿子，他儿子贪财把李四的300块记到自己账上。过了几天李四发现钱少了就来找村长理论。
One day the old king went to town and handed the bookkeeping over to his son, who was greedy and put 300 pieces of Lee's money in his own account. After a few days Li came to the village chief's theory when he found out he had less money.
自此以后老王在村里的威望直线下降，大家想到一个办法，就是一人一个账本，全民记账。张三借给李四300块钱，然后张三在村里面大喊一声：张三借给李四300块钱。然后大家拿出账本记录下：张三借给李四300块钱。
Since then, the old king's prestige in the village has declined, and one way to do that is to lend Li $4,300 to a single account book, then Zhang San shouts in the village: Zhang San lends $4,300 to Lee. Then everyone takes out the account book: Zhang San lends $4,300 to Lee.
这个时候这个村子就建立起来了一个去中心化的系统，不需要有德高望重的人做背书，不需要信任关系，更不需要担心村长的账本被偷走，也不用担心村长的儿子再来做假账等等。
At that time, the village built up a decentralised system that did not require endorsement by people of high moral standing, no relationship of trust, no fear of theft of the mayor's books, no fear of forgery by the village chief's son, etc.
当分布式结构中的每个人都记账的时候，篡改账本是不行的。比如李四借了张三300块钱，李四突然不认账：我没有借你钱呀。这个时候人民群众就站出来了，不对，我的账本上明明记录了你在某年某月某日向了张三借了300块钱，并且没有查到你还款的记录。
When everyone in the distributional structure keeps accounts, it is not possible to tamper with the books. For example, Li borrowed $3,300, and Li suddenly refused: I did not lend you money. At this point, the people stood up. No, my books record that you borrowed 300 dollars from a certain month of the year, and there was no record of your repayment.
说到这里，相信大家应该知道区块链是什么了？其实区块链就是人类的记账历史走到现在，科技给我们的最新的选择。本质上是一个去中心化的分布式账本。下面这个视频帮助大家更好的理解什么是区块链。
Speaking of which, I'm sure you should know what the chain of blocks is. In fact, the chain of blocks is the history of humans, and technology gives us the most recent choice. It's essentially a decentralised distributed book. The next video helps you understand better what the chain of blocks is.
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