{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What content needs to be backed up in an emergency situation during a blockchain upgrade?","a":"In an emergency situation of blockchain upgrade, the content that needs to be backed up includes: complete  blockchain ledger data, private keys and mnemonic phrases, wallet data, transaction history, as well as other related configurations and settings. Backing up these contents ensures that assets will not be lost during the upgrade process, and they can be successfully recovered after the upgrade is completed."}]}],"pr":"182444d23ccd74879206a7605b1c37ee73c32af0c0542e38764a204123260ab6"}