The People’s Daily has comprehensively covered the blockchain. Is the blockchain taking off?
On February 26th, the 17th edition of the People's Daily Economic Weekly published two blockchain commentary articles, "Three Questions Blockchain" and "Catch the Opportunity of Blockchain". Xiaohua believes that many people have been screened by the overwhelming articles and comments on the topic of the People's Daily's three-question blockchain.
The People’s Daily once again reported on the blockchain. The three-question blockchain talked about “what is the blockchainâ€, “What is the use of the blockchainâ€, and “Is the blockchain a new outlet?†The difference is that this People's Daily has maintained an optimistic attitude towards the blockchain.
The People’s Daily and Xinhua.com have reported on the blockchain. Is it necessary to take off the blockchain? Let's take a look at what is a blockchain: blockchain, a decentralized distributed ledger database, without a center, each node of the data store will copy the entire ledger synchronously, and information transparency is difficult to tamper with. From this definition, we can extract the central words of the blockchain, decentralized, transparent, and difficult to tamper with. Some people say that this is still difficult to understand, then we will solve it from the actual case of life.
Recall the trading process of buying a piece of clothing in Taobao:
The first step, you place an order and call the money to Alipay;
The second step, after paying the payment, notify the seller that the goods can be shipped;
The third step, the seller will send you the goods after receiving the Alipay notice;
The fourth step, after you receive the clothes, feel satisfied, choose to confirm the receipt on Alipay;
In the fifth step, Alipay receives the notice and calls the money to the seller. The process ends.
Let's take a look at the process of buying a piece of clothing in the blockchain. So what does the decentralized trading form look like?
The first step, you place an order and give the money to the seller;
In the second step, you record this transfer information on your own account book;
The third step, you broadcast this transfer information;
In the fourth step, the seller and Alipay record separately on their own books after receiving your transfer information;
In the fifth step, the seller delivers the goods and records the facts of the shipment on their own books;
In the sixth step, the seller broadcasts this fact record;
In the seventh step, you and Alipay receive this fact record and record it on your own ledger;
In the eighth step, you receive the clothes. At this point, the transaction process is finished.
Then two points of comparison, we can see the following points:
1. Distributed storage, manufacturing data redundancy through multiple backups
2. Let everyone have the ability to maintain a common database
3. Let everyone have the ability to supervise the behavior of maintaining the database
In my opinion, your guess is basically correct. In fact, these are the core things of blockchain technology. The outsiders look tall and unfathomable, but exploring their fundamental findings is so simple and simple.
The blockchain wants to take off, the ideal is very full, but the reality is very cruel. The well-known shortcoming of the blockchain is the efficiency problem. According to the statistics bitcoin 6~7 pens/second, the Ethereum is about 20 pens/second, and there are individual project claims. Hundreds/second. However, compared to VISA's average of 50,000 pens/second and Alipay's peak of 20w pens per second (it is said), it is several orders of magnitude worse.
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