{"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":"803574b740a633e3b3e0992f9de46e0650f719edea6bd8acd70be6af74b7e5b9"}