{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"When a blockchain upgrade fails, what should validators and operators do?","a":"Analyze the reasons for the upgrade  failure: First, they need to conduct a deep analysis of the reasons for the upgrade failure, which may include technical issues, configuration errors, network failures, etc."}]}],"pr":"f93e15fbe9464c260d066265d0819f7c02fa11d0f12ec74f1b5a24fd0e44c763"}