{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology for data storage and management?","a":"Immutable: Blockchain uses encryption algorithms and consensus mechanisms to ensure the consistency and integrity  of the data. Once the data is recorded on the blockchain, it is difficult to tamper with, ensuring the authenticity of the data."}]}]}