{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the account balance check steps and best practices in blockchain validation nodes?","a":"Account balance check: According to the specifications of the blockchain protocol, validation nodes need to check whether the account  balance meets relevant requirements."}]}],"pr":"be29be42313b6177ad870e36747cd60c50a701259876996a2d718b26cc23079e"}