{"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":"714492f4c2e4bee6b27c9a9c552b7f0863ab054b3acdd1bf91f253fb83e314bd"}