{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the parameters of the debug_traceBlockByHash method in blockchain?","a":"errorCallback: Error callback function to be called when an error occurs  during the query. This callback function receives an error object as a parameter, containing detailed information about the error."}]}],"pr":"9aa3755492080a3390eb4137084d2ef25c503ba1c8aadfd126e810fda77b0719"}