music/records/exemplars/UNMATCHED__36_Hell_s_Gate.acquisition.json
{
"schema": "exemplar-acquisition-proof/v1",
"verdict": "REJECT_UNMATCHED",
"track_id": "UNMATCHED__36_Hell_s_Gate",
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Christophe Héral & Billy Martin\\Rayman Legends (Original Game Soundtrack\\36 Hell's Gate.m4a",
"sha256": "560e53bf1b0c5cce1f2c45bbe3a2002a44d8319920443d99eb190217c1899f3a",
"bytes": 2587418,
"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": "2026-08-07T01:24:25+00:00",
"measurements_summary": {
"duration_s": 62.247,
"sections": 8,
"baseline_bpm": 184.57,
"key": "G",
"mode": "major",
"max_lanes": 9,
"melodic_salience": 0.7165,
"note_count": 90,
"events": {
"drops": 9,
"raises": 7,
"breaks": 1,
"tuttis": 12
},
"silence_budget": 0.063,
"dynamic_range_db": 12.65,
"onset_type": "ostinato_first",
"time_to_hook_s": 0.151,
"complexity_boundary_step_share": 0.2
},
"formula_card": "build/audio/exemplars/formula_cards/UNMATCHED__36_Hell_s_Gate.json",
"formula_card_page": "build/audio/exemplars/formula_cards/UNMATCHED__36_Hell_s_Gate.md",
"corpus_match": {
"matched": false,
"reason": "no corpus row scored above the 0.62 bar on title AND total",
"candidates": [
{
"id": "EX_094",
"t": "Escape from Vector",
"g": "Rayman Legends",
"score": 0.3897,
"title_score": 0.171
},
{
"id": "EX_120",
"t": "Dracula Castle",
"g": "Castlevania: Symphony of the Night",
"score": 0.3393,
"title_score": 0.3975
},
{
"id": "EX_162",
"t": "Schala's Theme",
"g": "Chrono Trigger",
"score": 0.3045,
"title_score": 0.3561
},
{
"id": "EX_011",
"t": "Nate's Theme",
"g": "Uncharted: Drake's Fortune",
"score": 0.2899,
"title_score": 0.3138
},
{
"id": "EX_056",
"t": "Rules of Nature",
"g": "Metal Gear Rising",
"score": 0.2871,
"title_score": 0.3235
}
],
"evidence": {
"tag_title": "Hell's Gate",
"tag_album": "Rayman Legends (Original Game Soundtrack)",
"tag_artist": "Billy Martin",
"filename_stem": "36 Hell's Gate"
}
},
"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."
}