{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the operational process after a blockchain upgrade fails?","a":"Emergency handling: According to the analysis results, emergency measures will be taken to address the problems in the nodes or networks  to ensure the normal operation of the blockchain network."}]}],"pr":"8386cd8d3d9150ed1e8b7d3a1b8775bd41495b1c54ee146926f72ff881ddf121"}