{"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":"b164fa4f391e941237fd7d440120bfb24efb1dd4406ba8dc337610b56880c7cc"}