{"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":"d7bf72f56ac70a97242041baca507ff858585df1f18c43dfd6039aee75225a86"}