{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the credibility and transparency of data?","a":"Decentralization: Blockchain technology  uses distributed node consensus algorithms to generate and update data, without relying on centralized servers or institutions, reducing the risk of data tampering."}]}],"pr":"328f81e8c5ce502da7af13eb2241fb57139a6f61ffd62c4900e53460341eab0c"}