{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the risks involved in the blockchain upgrading process?","a":"Network security risks: The blockchain system may be damaged or data may be leaked due to hacker attacks  during the upgrade process."}]}],"pr":"62d59c25bcd330d5b8236ca7b80df283b3fc54f84452adad7c49bd9d3bc2ae6c"}