{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to avoid using expired blockhash in blockchain transactions?","a":"Use the latest blockhash: When creating a  transaction, use the blockhash obtained from the latest block. This way, your transaction will be processed in the latest block, reducing the risk of using an expired blockhash."}]}],"pr":"e09ecba8e2574036215821193c97ec001d2ad62bf1b54c0b543f65cbc1c8ff9e"}