{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is transaction data stored in a blockchain?","a":"Transaction data in blockchain is stored through distributed nodes. Blockchain data consists of two parts: block data and state data. Block data describes the records of each transaction occurring on the blockchain, such as transfers, recharges, etc. State data records the current status of each account and smart contract, such as balances. These data are stored and processed by blockchain nodes.\n\nBlockchain nodes are programs running on devices such as computers and virtual machines. Multiple  nodes are connected through a network to form a complete blockchain network. In a blockchain network, data storage between nodes generally adopts specific databases such as LevelDB, RocksDB, MySQL, etc."}]}],"pr":"104a5e28659dde81b12423a2dc271dbdfafe0a485cd846d691c1a05c36a9de8c"}