{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain handle the validation of transaction operation effectiveness?","a":"Check transaction output：Verify whether the  transaction output is reasonable，including whether the amount is correct and whether it meets the limitations specified in the blockchain protocol."}]}],"pr":"6ef8e2522fa9da656a1056c09588edcac743e96c3b09ca0c8e3a18d24ce05ea1"}