{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the requirements for taking data snapshots and backing up blockchain data?","a":"High consistency: To ensure the integrity and consistency of blockchain data, snapshot  backup needs to be completed in a short period of time to avoid changes in data during the backup process. This requires the backup system to monitor the dynamics of the blockchain in real-time and trigger snapshot operations promptly when the data changes."}]}],"pr":"13eabe52e80252ccba447284c0e85a05eae742ce297376ce5db267cb3baeaeb7"}