{"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":"3d99f1da037322525b9a8ce9904e6120e10a91c6c099ebadaa08ba1b8c06aea8"}