{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of the expiry mechanism in Solana's transactions?","a":"Prevention of malicious behavior: The transaction expiration  mechanism can effectively prevent malicious actors from using expired transactions for fraud or attacks, thereby improving the overall security of the network."}]}],"pr":"7d9d7c3ef093f1b165dccd63ccd34914c2599a6cf0562865824a6b0d1f31a605"}