{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain address data privacy and personal information protection issues?","a":"Data immutability: Blockchain technology enables data to be tamper-proof, as each transaction is permanently recorded in the blockchain, making it difficult to modify or  delete existing data. This feature ensures that once personal information is stored on the blockchain, it cannot be altered or deleted without leaving a trace."}]}],"pr":"b667e8042d8e5f8fff41a752651e4c8e5c74b8ad6a248ff624fc6e638fe3a372"}