{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the security of information?","a":"Decentralization: Blockchain technology does not have a central control institution; data is distributed across multiple nodes, each of which has the right to verify and update the data. This decentralized feature ensures the decentralization and fairness of the data, avoiding single points of failure and security vulnerabilities."}]}]}