{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of a virtual credit system?","a":"Dynamic evaluation: The virtual credit system adopts a dynamic evaluation mechanism, dynamically assessing users' credit performance and behavior changes at different time points, and continuously updating  users' credit scores accordingly."}]}],"pr":"be4b233cece65ca0e24abb9d628dcf006cde1cde83fb239955f76c601e8bd250"}