{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What backups do validators and operators need to do during the blockchain upgrade process?","a":"Backup of system configuration and parameters: During the upgrade process, validators  and operators should backup system configuration and parameters to ensure the smooth operation of the upgraded blockchain."}]}],"pr":"80a6a449314d7b2238f387b4b4251ca582aba18342c91cddbd8d08489963ed5f"}