{"board": "QEC", "files": {"detectors.npy": "uint8 array [shots x num_detectors] - decode each row", "dem.txt": "stim DetectorErrorModel (decomposed) for building a decoder"}, "metric": "logical error rate = fraction of shots whose predicted observable bit is wrong (lower is better)", "submit_format": {"predictions": {"shot_<i:05d>": "0 or 1"}, "hf_user": "<name>", "method": "<decoder description>"}}