{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are operation modules defined in a blockchain?","a":"Transaction management: Realize the management of transactions on the blockchain, including transaction submission, validation,  and confirmation."}]}],"pr":"6a163bdd2cdf9f3fcdd89bde588bef3e0bd56caf798fa5559ed7ce5762b420c2"}