{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Where is the data stored on the blockchain?","a":"The data on the blockchain is stored on the chain and in corresponding node databases. Blockchain data mainly includes block data and state data. Block data describes each transaction record  occurring on the blockchain, such as transfers and recharges. State data records the current status of each account and smart contract, such as balances. These data are used and stored by blockchain nodes, which are usually programs running on devices such as computers and virtual machines. Multiple nodes form a complete blockchain network through network connections.\n\nBlockchain nodes usually store data on disk and use specific databases (such as LevelDB, RocksDB, MySQL, etc.) to maintain the data."}]}],"pr":"9a6ee15536e411a79b60e37134fae5172089061af00d6aadb6fc49ce0fe52718"}