{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does PSBT in blockchain save users' fees and enhance security?","a":"Saving user fees: PSBT allows users  to only sign part of the transaction information without needing to sign the full transaction. This reduces the transaction fees because the decrease in the number of signatures means less work for the validation nodes in the network. Additionally, PSBT also allows users to add multiple signatures flexibly during the transaction process, thus reducing the cost of duplicate submission of transactions."}]}],"pr":"77e4f7e8ff9dfcc369152d9fe1940230539933e26cb56ad153bbf9cc91a96506"}