{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the ord store the content of data records in the blockchain?","a":"The data recorded in a blockchain is stored through block and state data. Block data mainly includes records of each transaction on the blockchain, such as transfer records, recharge records, etc. State data records the current state of each account and smart contract, such as account balances. These data are mainly stored and processed by blockchain nodes. A blockchain node is a program running on devices such as computers and virtual machines. Multiple nodes form a  complete blockchain network through network connections.↵↵When storing data, blockchain nodes usually use specific databases, such as independent and distributed databases like LevelDB, RocksDB, and MySQL."}]}],"pr":"0cb62019100ed4df4bc9db0f0300b9945dcc21d49ddcd473fb2c24e4b918cf72"}