{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"When does it require creating tracking data again during the transaction tracking process in a blockchain node?","a":"When a node receives error or abnormal information from other  nodes, such as a transaction being considered fraudulent, the node needs to create trace data again to investigate the situation and take necessary actions."}]}],"pr":"20d099b645f4ae114bf8174f98c1f7244ca35558d52dbe29577933c0af03cc48"}