{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to ensure the expiry time of blockchain transactions?","a":"Choose an appropriate blockchain platform: Different blockchain platforms have different transaction confirmation times and expiration times. When choosing a platform, it is important to understand its transaction speed and security to ensure that the transaction is  confirmed within the specified time."}]}],"pr":"52a0fba4dfff3bcd02d8e610e7ee95f5adbf22bffb847678cf4630476c88d266"}