{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What rewards can be obtained by executing transactions in a blockchain?","a":"Transaction fees: When executing transactions, participants may need to pay a certain amount of transaction fees."}]}],"pr":"def9245afc8180708702ff6815c765a015bcf10b75ca97c7882570df51cbd656"}