{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the normal recovery process after a failed blockchain upgrade?","a":"Develop a recovery plan: Based on the fault cause and related information, a targeted recovery plan is formulated. The plan may include re-upgrading, rolling back  to the previous version, fixing software defects, etc."}]}],"pr":"2c725379ea2101f7f58dc3ce76fcb1688d8ddc98304ab19325ab250d2c86a1cf"}