{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What problems does blockchain technology solve?","a":"Data credibility: Blockchain uses encryption algorithms and consensus mechanisms to ensure the authenticity  and integrity of data, making it difficult to tamper with data in the blockchain, thereby improving the credibility of data."}]}],"pr":"24f8d0b14a19d98446f1d18c51714c0c375cae38ac5d8fdb7581b8639494bcd3"}