{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain prevent data tampering?","a":"Immutable ledger: Once a transaction is recorded in the blockchain, it cannot be altered or  deleted. This ensures that the ledger remains immutable, preventing any tampering with the recorded data."}]}],"pr":"bc3c769425bdabfe39d62dff72c212f654029128b83c133ed89c75f279e43dfc"}