1. Encrypt and decrypt by using cryptographic technology, so that records cannot be tampered with. Common blockchain encryption methods include hash algorithm, RSA algorithm and elliptic curve algorithm.
2. The huge amount of calculation needs a reasonable reward mechanism to support it. Because every transaction must be recorded, so far, the blockchain of Bitcoin has exceeded 60 G. Every new transaction needs to confirm the relevant information of the transaction account in order to confirm the validity of the transaction, and a huge amount of calculation needs a powerful computer to complete.
In order to encourage powerful computing power to participate, Bitcoin gives two rewards: one is to distribute a certain amount of Bitcoin to these computers every day; Instead, all the transfer fees will be awarded to these computers. The technical term of these computers is "mining machine", and the person holding the mining machine is called "miner". )
China has made great efforts in asset digitization, and launched China, a crowdfunding platform in digital currency.