{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security risks that may arise from blockchain upgrades?","a":"Smart contract vulnerabilities: If there are vulnerabilities in smart contracts during the upgrade process, they may lead to hacker attacks, resulting in lost funds  or other security risks."}]}],"pr":"8ee17aa2234c3cd289e5c976dca06d960e416f9249a01de762927eedf5176dfb"}