{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In blockchain, how to execute batch cancellation of spot orders?","a":"Users can submit cancellation requests containing multiple  spot orders through the client or API calls to this interface. The request should include information such as the unique identifier of the order and the order status."}]}],"pr":"d77caaa1b8046351b99af10d5c0137e780bb6c308c65b9073dbbba89ce81adc1"}