{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to create a transaction with a version?","a":"Version management: During the transaction process, modify and update the transaction documents as needed. Each modified version  should retain the original version."}]}],"pr":"12e6de32e012cb5489467cd31ec014da66bfffc0f2afc15b1ea809e401804ce7"}