| { |
| "waveform_index": "data/index/waveform_index.sqlite", |
| "index_audit": { |
| "scope": "all waveform_segments rows", |
| "segment_rows": 22908, |
| "missing_required_field_counts": {}, |
| "invalid_sampling_rows": 0, |
| "end_time_formula_mismatch_rows": 0, |
| "duplicate_segment_key_rows_beyond_first": 0, |
| "exact_nslc_gap_count_within_selected_periods": 0, |
| "exact_nslc_gap_count_by_network": {}, |
| "exact_nslc_gap_count_by_channel_family": {}, |
| "exact_nslc_gap_duration_s": { |
| "median": null, |
| "p90": null, |
| "p99": null, |
| "maximum": null |
| }, |
| "exact_nslc_overlap_count_within_selected_periods": 0, |
| "exact_nslc_overlap_count_by_network": {}, |
| "exact_nslc_overlap_count_by_channel_family": {}, |
| "exact_nslc_overlap_duration_s": { |
| "median": null, |
| "p90": null, |
| "p99": null, |
| "maximum": null |
| }, |
| "missing_coordinate_rows": 0 |
| }, |
| "hdf5_sample_audit": { |
| "scope": "deterministic SHA-256-ordered sample stratified by period, network, and HH/BH/EH/HN channel family", |
| "sample_per_stratum": 2, |
| "selected_segments": 40, |
| "sample_window_seconds": 30.0, |
| "counters": { |
| "datasets_opened": 40, |
| "sample_windows_read": 120 |
| }, |
| "metadata_mismatch_examples": [], |
| "sample_values_examined": 334800, |
| "zero_value_fraction": 0.0005465949820788531, |
| "longest_zero_run_s_in_sample_windows": 0.025, |
| "dtype_extreme_value_count": 0, |
| "nonfinite_value_count": 18000, |
| "large_first_difference_count_20mad": 9, |
| "large_first_difference_note": "Diagnostic flag only; large first differences can be genuine seismic signals." |
| }, |
| "interpretation": "Index checks cover every segment row. Sample-value diagnostics do not replace a full-array scan or comparison with upstream MiniSEED samples." |
| } |
