{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain?","a":"Trustworthy data: Blockchain uses encryption algorithms and consensus mechanisms to ensure the authenticity and integrity of data, making it difficult to tamper with data in  blockchain, thereby improving the credibility of data."}]}],"pr":"4e731d577661de0a1f4fc3f9f9b0eb73383d52f69a51df83427efcb7657420b2"}