{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What definitions are needed for query messages in blockchain smart contracts?","a":"Query Response: The query response is a message generated by the smart contract based on the query request, containing the query results and returned to the party that  initiated the query."}]}],"pr":"ca3542272f933d44279c19911be2402ad495c61eb9a37bd13e091873cbae0f9f"}