{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the risks involved in the blockchain upgrading process?","a":"Consensus risks: Problems may arise in the consensus mechanism during  the upgrade process, such as node splitting and consensus failure, affecting the normal operation of the blockchain."}]}],"pr":"d650f531c21792a1fca0a6cee43359e84b6a5ca25a0405e420f5df8c8a091ef6"}