{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the trade-offs involved in configuring the expiration time for blockchain transactions?","a":"Transaction speed and efficiency: Setting a short expiration time may lead to insufficient time for both parties to confirm the transaction, affecting transaction speed and efficiency.  Conversely, an excessively long expiration time may result in transaction congestion, increasing the network burden on the blockchain. Therefore, when setting the expiration time, a balance must be struck between transaction speed and security."}]}],"pr":"02a139fbb7b3b9b6380a3e1b66f410f37c6a75e54e508f007d60c80d5d8de291"}