{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do durable nonces in blockchain serve offline signature transactions?","a":"Ensuring Freshness: A persistent nonce helps  to ensure that the transaction is not older than the specified time period. This prevents attackers from submitting old transactions that have already been processed, thereby maintaining the integrity of the blockchain.\n\n3."}]}],"pr":"d5d3621cbab93eb2e63f5878f822bb1dc22b6ecbe3c5917499f497ff2f4134d2"}