{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"During the blockchain upgrade process, what key files do validators need to back up?","a":"In the process of blockchain upgrading, the key files that validators need to back up include: consensus algorithm-related files, account keys and private keys, transaction data, blockchain state data, network configuration files, and log files. These files are crucial for ensuring the security and stability of the blockchain network,  and they can help validators recover and rebuild the blockchain system during the upgrade process. Backing up these files can prevent data loss and ensure that the blockchain network can operate normally after the upgrade."}]}],"pr":"4016c90dbe070cec3d1f4245ebc757d17c0267bb9ed393e5408bec814af13326"}