{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology in managing public population information?","a":"Data Security: Blockchain adopts distributed ledger technology, and data is stored on multiple nodes, making it difficult to tamper with. This ensures a high level of security for public population  information in the blockchain system, helping to prevent data breaches and malicious tampering."}]}],"pr":"f07da05312e9b7a7453d3af7a886a53f9049ee2c7eb9885c1477ea68228b48af"}