music/records/exemplars/UNMATCHED__06_Hellwalker.acquisition.json
{
"schema": "exemplar-acquisition-proof/v1",
"verdict": "REJECT_UNMATCHED",
"track_id": "UNMATCHED__06_Hellwalker",
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Mick Gordon\\DOOM (Original Game Soundtrack)\\06 Hellwalker.m4a",
"sha256": "5189c3d0a40b6bdd05f65e9dcfeed006717cbd8b6e72efed3b37a658776e41c6",
"bytes": 10744172,
"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": "2026-08-07T04:49:52+00:00",
"measurements_summary": {
"duration_s": 305.481,
"sections": 8,
"baseline_bpm": 103.36,
"key": "D",
"mode": "minor",
"max_lanes": 9,
"melodic_salience": 0.7433,
"note_count": 302,
"events": {
"drops": 34,
"raises": 35,
"breaks": 4,
"tuttis": 45
},
"silence_budget": 0.0092,
"dynamic_range_db": 21.21,
"onset_type": "fade_in",
"time_to_hook_s": 0.453,
"complexity_boundary_step_share": 0.414
},
"formula_card": "build/audio/exemplars/formula_cards/UNMATCHED__06_Hellwalker.json",
"formula_card_page": "build/audio/exemplars/formula_cards/UNMATCHED__06_Hellwalker.md",
"corpus_match": {
"matched": false,
"reason": "no corpus row scored above the 0.62 bar on title AND total",
"candidates": [
{
"id": "EX_047",
"t": "The Only Thing They Fear Is You",
"g": "Doom Eternal",
"score": 0.3047,
"title_score": 0.155
},
{
"id": "EX_046",
"t": "BFG Division",
"g": "Doom",
"score": 0.249,
"title_score": 0.0496
},
{
"id": "EX_109",
"t": "Still Alive",
"g": "Portal",
"score": 0.2489,
"title_score": 0.2952
},
{
"id": "EX_123",
"t": "Halo Theme",
"g": "Halo: Combat Evolved",
"score": 0.2468,
"title_score": 0.2657
},
{
"id": "EX_095",
"t": "Unshaken",
"g": "Red Dead Redemption 2",
"score": 0.2416,
"title_score": 0.2756
}
],
"evidence": {
"tag_title": "Hellwalker",
"tag_album": "DOOM (Original Game Soundtrack)",
"tag_artist": "Mick Gordon",
"filename_stem": "06 Hellwalker"
}
},
"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."
}