The four most famous international exchanges:

Binance INTL	OKX INTL	Gate.io INTL	Huobi INTL
China Line　APP DL	China Line　APP DL	China Line　APP DL	China Line　APP DL

Note: The above exchange logo is the official website registration link, and the text is the APP download link.

Blockchain refers to a technical solution for collectively maintaining a reliable database through decentralization and trustlessness.

Can you explain what blockchain is in a simple way?

Answer: In simple terms, blockchain technology refers to a way for all people to participate in bookkeeping. There is a database behind all systems, and you can think of the database as a big ledger. Then who keeps this ledger becomes very important. At present, whoever has the system keeps the account. Tencent keeps the WeChat ledger, and Alibaba keeps the Taobao ledger. But now in the blockchain system, everyone in the system has the opportunity to participate in bookkeeping. If there is any data change within a certain period of time, everyone in the system can do the bookkeeping. The system will judge the person who keeps the account the fastest and best during this period, write his record into the ledger, and send the ledger content during this period to all other people in the system for backup. In this way, everyone in the system has a complete ledger. In this way, we call it blockchain technology.

What problems does blockchain solve?

Answer: The most important thing about blockchain is that it solves the problem of intermediary credit. In the past, it was difficult for two people who did not know and trust each other to reach a collaboration, and they had to rely on a third party. For example, in the past, any kind of transfer required the existence of an institution such as a bank or Alipay. However, through blockchain technology, Bitcoin is the first time that humans have been able to complete a transfer that both parties can trust without the involvement of any intermediary institution. This is a major breakthrough in blockchain.