{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to create a data snapshot before exporting chain status in blockchain?","a":"Determine the snapshot  timepoint: First, determine the timepoint for exporting the blockchain snapshot, which can be a pre-set fixed time interval or a dynamically adjusted timepoint based on demand."}]}],"pr":"d1a2f0de6157acd3ad5d0e45b979c7018159bea19cf4bbd9f26d40d9ed121762"}