{"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":"1307d67ac3ff14a075b18f58887cda7687ea4eeda95f59e038b834999b43d125"}