{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the irreversibility of transactions?","a":"Immutable ledger: The blockchain is a tamper-proof, immutable ledger  that records transactions in chronological order. Once a transaction is recorded in the blockchain, it cannot be altered or deleted. This ensures the irre"}]}],"pr":"81f9e423fcf18503eb9fcaebe35632e1a360c2ecb721010f885e1a92ee47665a"}