{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the backup steps required for validator operations after a blockchain upgrade?","a":"Preparation phase: Check the node hardware and software environment to ensure that the upgrade requirements are met;\n2. Data backup: Backup the current state of the blockchain data in case of accidental loss during the upgrade process;\n3. Downloading the new version of software: Download the latest version of node software from the official channel;\n4. Installing and configuring the new software: Install the new version of software and configure related settings, such  as block size, synchronization strategy, etc.;\n5. Node startup: Start the node using the new version of software, and"}]}],"pr":"412da0876f7c2447927d3befd6e04de0ee8aa1285d8fb1bf5c8d92a19aaa8f83"}