{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What actions should be taken if the blockchain upgrade is not successful?","a":"Establish a risk prevention and control mechanism  to monitor and address potential risks during the upgrade process, ensuring the security and stability of the blockchain system"}]}],"pr":"4c7b29c4d387bd82408f71d6c2da3865b1a4cce8e64f8c8a447ca85375223e93"}