{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to create a versioned transaction?","a":"Establish the transaction entity: According to the nature of the transaction object, establish the corresponding transaction entity, such as the buyer, the seller, etc."}]}],"pr":"c07fa790bb51a77ce44c68759e848f78282b03eebb02bdb02772e28eeaa876a6"}