{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The handling principles of failed blockchain upgrade include the following aspects:↵↵1. Root cause analysis: Investigate and identify the reasons for the failed upgrade, such as technical issues, human errors, or insufficient preparation.↵↵2. Emergency response: Establish an emergency response mechanism to ensure the stability and security of the blockchain system. This may include migrating to a previous version of the blockchain or implementing temporary measures to prevent further damage.↵↵3. Communication: Keep stakeholders informed about the failure and the steps being taken to resolve it. This includes providing regular updates and addressing any concerns or questions they may have.↵↵4. Reputation management: Minimize the impact of the failed upgrade on the reputation of the blockchain project and maintain trust by being transparent about the issue and the steps taken to resolve it.↵↵5. Lessons learned: Document the failed upgrade and its causes, and use this information to improve the upgrade process and prevent similar issues in the future.↵↵6.","a":"Data consistency principle: Ensure the integrity and consistency of blockchain data in case of upgrade failure, preventing data loss  or tampering."}]}],"pr":"b7566567581c72a11a20916ea30dde78ad0b68d6107a7f503236d91d4d1082b7"}