{"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":"41a3b0325fef5d0154047c7593446972356f1767ce03b7a51ba5401ebb33f944"}