{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the impact of transaction expiration time on transaction confirmation in blockchain?","a":"The transaction expiration period in blockchain has a significant impact on transaction confirmation. The transaction expiration period refers to the specified time within which transaction data must meet certain verification conditions before being written into the blockchain. If a transaction fails to complete confirmation within the specified transaction expiration period, it will be considered invalid and cannot be written into the blockchain. This means that transaction participants need to complete transaction confirmation within the transaction expiration period to ensure the success and security of the transaction. At the same time, the transaction expiration period also provides higher fault tolerance and resistance to attacks for the blockchain network, as even in the face of malicious attacks or network congestion, transaction confirmation can still proceed according to the predetermined rules. In  summary, the transaction expiration period plays a key role in blockchain."}]}],"pr":"67a7d7f74181971a9e35a0b27432cfb8ec04a232247bd8e7dadf5e3ae4f25b8c"}