{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the transaction validation process in a blockchain?","a":"Consensus  mechanism：The nodes in the blockchain network reach a consensus on the validity of the transaction, and then propagate the transaction to the next block."}]}],"pr":"bf6e1abdc62e57fa38e81f99385f9c5520d0ae7414e437c79a01ad6218d5edde"}