music/records/exemplars/UNMATCHED__31_IV._Doom.acquisition.json
{
"schema": "exemplar-acquisition-proof/v1",
"verdict": "REJECT_UNMATCHED",
"track_id": "UNMATCHED__31_IV._Doom",
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Mick Gordon\\DOOM (Original Game Soundtrack)\\31 IV. Doom.m4a",
"sha256": "691853fe1abc5a6686147dead094bc5b889727e0e28c61564cf171f01ec06d61",
"bytes": 4082625,
"source_format": "mov,mp4,m4a,3gp,3g2,mj2",
"source_codec": "aac",
"source_sample_rate_hz": 44100,
"lossless_source": false,
"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"measured_at": "2026-08-07T05:21:46+00:00",
"measurements_summary": {
"duration_s": 107.382,
"sections": 6,
"baseline_bpm": 136.0,
"key": "D",
"mode": "minor",
"max_lanes": 9,
"melodic_salience": 0.9441,
"note_count": 113,
"events": {
"drops": 18,
"raises": 17,
"breaks": 4,
"tuttis": 7
},
"silence_budget": 0.0696,
"dynamic_range_db": 35.42,
"onset_type": "silence_then_hit",
"time_to_hook_s": 8.766,
"complexity_boundary_step_share": 0.238
},
"formula_card": "build/audio/exemplars/formula_cards/UNMATCHED__31_IV._Doom.json",
"formula_card_page": "build/audio/exemplars/formula_cards/UNMATCHED__31_IV._Doom.md",
"corpus_match": {
"matched": false,
"reason": "no corpus row scored above the 0.62 bar on title AND total",
"candidates": [
{
"id": "EX_046",
"t": "BFG Division",
"g": "Doom",
"score": 0.3721,
"title_score": 0.2255
},
{
"id": "EX_047",
"t": "The Only Thing They Fear Is You",
"g": "Doom Eternal",
"score": 0.29,
"title_score": 0.1341
},
{
"id": "EX_029",
"t": "Dire, Dire Docks",
"g": "Super Mario 64",
"score": 0.2341,
"title_score": 0.248
},
{
"id": "EX_033",
"t": "Corridors of Time",
"g": "Chrono Trigger",
"score": 0.233,
"title_score": 0.2362
},
{
"id": "EX_082",
"t": "The Best Is Yet to Come",
"g": "Metal Gear Solid",
"score": 0.2296,
"title_score": 0.2566
}
],
"evidence": {
"tag_title": "IV. Doom",
"tag_album": "DOOM (Original Game Soundtrack)",
"tag_artist": "Mick Gordon",
"filename_stem": "31 IV. Doom"
}
},
"corpus_row": null,
"corpus_flip": {
"flipped": false,
"reason": "not attempted"
},
"control": {
"controls_passed": 24,
"controls_total": 24,
"ran_at": "2026-08-06T20:41:42+00:00",
"ffmpeg_version": "ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"note": "This measurement is admissible only because the positive control recovered its planted answers in the same process, immediately before it."
},
"legal_posture": "ANALYSIS FOR UNDERSTANDING ONLY. Audio lawfully obtained by Josh, read from disk, measured, and never copied, redistributed, or used as model input of any kind."
}