{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain solve data security and privacy issues?","a":"Immutable records: Once data is recorded on the blockchain, it cannot be altered or deleted,  providing a tamper-proof ledger."}]}],"pr":"9ba2cabbd97457b6da44517320e1c7c4f07daa1f6fa1754c4edf4af120f4637a"}