music/records/exemplars/UNMATCHED__Portal2-17-I_Am_Different.acquisition.json
{
"schema": "exemplar-acquisition-proof/v1",
"verdict": "REJECT_UNMATCHED",
"track_id": "UNMATCHED__Portal2-17-I_Am_Different",
"source_path": "D:\\audio\\exemplars\\Portal2-OST\\Portal2-17-I_Am_Different.mp3",
"sha256": "4ba54c406d28c27d33eb1d42ebeed5c07d21fa12cd208710e0aa0d0e14e972c4",
"bytes": 10749011,
"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": "2026-08-06T23:31:57+00:00",
"measurements_summary": {
"duration_s": 268.669,
"sections": 9,
"baseline_bpm": 129.2,
"key": "C",
"mode": "major",
"max_lanes": 9,
"melodic_salience": 0.8807,
"note_count": 355,
"events": {
"drops": 6,
"raises": 2,
"breaks": 1,
"tuttis": 9
},
"silence_budget": 0.0217,
"dynamic_range_db": 8.02,
"onset_type": "ostinato_first",
"time_to_hook_s": 0.058,
"complexity_boundary_step_share": 0.0
},
"formula_card": "build/audio/exemplars/formula_cards/UNMATCHED__Portal2-17-I_Am_Different.json",
"formula_card_page": "build/audio/exemplars/formula_cards/UNMATCHED__Portal2-17-I_Am_Different.md",
"corpus_match": {
"matched": false,
"reason": "no corpus row scored above the 0.62 bar on title AND total",
"candidates": [
{
"id": "EX_109",
"t": "Still Alive",
"g": "Portal",
"score": 0.3436,
"title_score": 0.2067
},
{
"id": "EX_111",
"t": "Exile Vilify",
"g": "Portal 2",
"score": 0.3286,
"title_score": 0.1984
},
{
"id": "EX_110",
"t": "Want You Gone",
"g": "Portal 2",
"score": 0.2674,
"title_score": 0.0979
},
{
"id": "EX_048",
"t": "Rivers in the Desert",
"g": "Persona 5",
"score": 0.2531,
"title_score": 0.2993
},
{
"id": "EX_024",
"t": "Kokiri Forest",
"g": "Zelda: Ocarina of Time",
"score": 0.2419,
"title_score": 0.2862
}
],
"evidence": {
"tag_title": "I'm Different",
"tag_album": "Portal 2: Songs to Test By - Volume 1",
"tag_artist": "Aperture Science Psychoacoustics Laboratory",
"filename_stem": "Portal2-17-I_Am_Different"
}
},
"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."
}