{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security risks that may arise from blockchain upgrades?","a":"Consensus algorithm failure: Blockchain upgrades may cause the consensus algorithm to fail, thus affecting the security and stability of the blockchain network."}]}],"pr":"90eca8326af66f44ebb8cf008f33e4381b6f7343e157b9e28e9529d752c33ce8"}