{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"When a blockchain upgrade fails, what should validators and operators do?","a":"Confirm the impact of the upgrade failure: Next, they need to assess the impact of the upgrade failure on the blockchain network and its users, so that they can take  measures to solve the problem as soon as possible."}]}],"pr":"302a9be33140ef24be886251108bb1abc8a6e6ef2a664eedfca214e109aa124f"}