{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure security?","a":"mmutable records: Once data is recorded on the blockchain, it cannot be altered or deleted, creating a tamper-proof ledger that  records the history"}]}],"pr":"91ab0ebb5a7d5d7dafd09b70f6d27a5a113ed7b15f92fbda951e64ebf2b933e8"}