{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology?","a":"Eliminating intermediary institutions and reducing operating costs: Due to the decentralized design of blockchain, there is no need to  rely on centralized institutions for credit endorsement, which reduces operating costs."}]}],"pr":"e8b71b182055a521b3369c5dcb79fdbdefa99d49e84dfbd48e695355cd5f5ac2"}