{"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":"aa96734cdef79d2b2cda414f281f1618c89dce455e762ef57b76d68cfad32d37"}