{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you handle transaction expiration in a blockchain?","a":"Increasing the speed of transaction confirmation: By optimizing the  consensus algorithm of the blockchain network and increasing the speed of nodes processing transactions, the time of transaction expiration can be reduced. For example, adopting more efficient consensus algorithms such as Proof of Stake (PoS) or Delegated Proof of Stake (DPoS) etc., to improve the transaction efficiency of the blockchain."}]}],"pr":"0570954d84e67d4beb065386c959a1412c139a8abf46da9637d5e5a877e725fa"}