{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of transaction transmission protocols in blockchain?","a":"Low trust cost: The blockchain transaction transmission protocol ensures trust through  cryptographic technology and consensus mechanisms."}]}],"pr":"e852e68497906a4ac1531d219d3acf00e437fb4a9379fcee693f1c47a4f63d57"}