First of all, decentralization means that all nodes running in the whole blockchain network can keep accounts and have the right to keep accounts, which completely avoids the shortcomings of centralized operation. Not decentralization, but de-intermediation;
Second, openness, which is for the chained blockchain, because anyone with chains can go in and read and write, as long as it is the node of its entire network system, it has the right to keep accounts.
Third, tamper-proof means that anyone who wants to change the information in the blockchain must attack 5 1% nodes in the network to change the data, which is very, very difficult;
Fourthly, anonymity, whose anonymity is based on its algorithm, is addressed by address, not by personal identity, which is also a concern of the government. There are two uncontrollable blockchain. The first is uncontrollable anonymity. I don't know who initiated the transaction. The second is that it has a cross-border payment, which involves the transfer of money;
5. traceability His mechanism is to set the last block to have the hash value of the previous block, just like a hook. Only when the previous hash value is identified can it be hung up. This is a complete chain. Another good feature of traceability is that it is convenient for data query, because this block has a unique identifier. For example, if you go to the database to query a thing, many algorithms are found in blocks, and this blockchain network is defined by time nodes. It is more convenient to find this block and then address it during this time period.