{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology?","a":"Public transparency and improved efficiency: Blockchain technology makes data public and transparent, helping to enhance social operational efficiency and reduce  errors caused by moral hazard."}]}],"pr":"567f31d7ec4dfac006bef1cb4fcda493340fdfea7fa0068e46b573522f0376b8"}