{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is blockchain data stored and verified?","a":"Blockchain data is stored and verified through distributed nodes. Blockchain data includes 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.\n\nBlockchain nodes are programs running on devices such as computers and virtual machines, and multiple nodes form a complete blockchain network through network connections. In this network, nodes validate transactions and block data between each other. The blockchain adopts the Proof of Work (PoW)  or Proof of Stake (PoS) consensus mechanism."}]}],"pr":"b4b366371a2efda40f450e1f03d3dc9d243490c6ea8f4ec6edc050162acdda06"}