music/records/exemplars/EX_110.acquisition.json
{
"schema": "exemplar-acquisition-proof/v1",
"verdict": "PROOF_OK",
"track_id": "EX_110",
"source_path": "D:\\audio\\exemplars\\Portal2-OST\\Portal2-13-Want_You_Gone.mp3",
"sha256": "f06675cda58c93a21f75e1a5e41ebc7b7494b8d8c3c343044be07d00cdea5a04",
"bytes": 5665608,
"source_format": "mp3",
"source_codec": "mp3",
"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": "2026-08-06T10:50:17+00:00",
"measurements_summary": {
"duration_s": 141.584,
"sections": 7,
"baseline_bpm": 198.77,
"key": "A",
"mode": "major",
"max_lanes": 9,
"melodic_salience": 0.8372,
"note_count": 316,
"events": {
"drops": 26,
"raises": 16,
"breaks": 6,
"tuttis": 29
},
"silence_budget": 0.0307,
"dynamic_range_db": 10.59,
"onset_type": "fade_in",
"time_to_hook_s": 0.035,
"complexity_boundary_step_share": 0.182
},
"formula_card": "build/audio/exemplars/formula_cards/EX_110.json",
"formula_card_page": "build/audio/exemplars/formula_cards/EX_110.md",
"corpus_match": {
"matched": true,
"score": 0.8989,
"title_score": 1.0,
"margin": 0.6008,
"candidates": [
{
"id": "EX_110",
"t": "Want You Gone",
"g": "Portal 2",
"score": 0.8989,
"title_score": 1.0
},
{
"id": "EX_109",
"t": "Still Alive",
"g": "Portal",
"score": 0.2981,
"title_score": 0.1417
},
{
"id": "EX_111",
"t": "Exile Vilify",
"g": "Portal 2",
"score": 0.2621,
"title_score": 0.1033
},
{
"id": "EX_010",
"t": "Max Payne Theme",
"g": "Max Payne",
"score": 0.2541,
"title_score": 0.2818
},
{
"id": "EX_012",
"t": "Gwyn, Lord of Cinder",
"g": "Dark Souls",
"score": 0.2517,
"title_score": 0.2993
}
],
"evidence": {
"tag_title": "Want You Gone",
"tag_album": "Portal 2: Songs to Test By - Volume 3",
"tag_artist": "Aperture Science Psychoacoustics Laboratory",
"filename_stem": "Portal2-13-Want_You_Gone"
}
},
"corpus_row": {
"id": "EX_110",
"t": "Want You Gone",
"g": "Portal 2",
"c": "Jonathan Coulton",
"k": "CREDITS_TRIUMPH",
"s": "ACQUIRED"
},
"corpus_flip": {
"flipped": true,
"from": "MISSING",
"to": "ACQUIRED"
},
"control": {
"controls_passed": 24,
"controls_total": 24,
"ran_at": "2026-08-06T10:11:06+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."
}