{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is contract execution implemented in blockchain?","a":"Reading data: The smart contract reads relevant  data from the blockchain, such as transaction records,"}]}],"pr":"99697096c3356fc561ec9d9b152650954e263fbb3d09515376ab2a3b5405ee99"}