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            "video_start_seconds": 125.0,
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            "max_pearson_r": 0.024441332985379517,
            "best_additional_reference_lag_seconds": -0.009999999999999842
          }
        ],
        "summary": {
          "median_max_pearson_r": 0.027516299820414647,
          "minimum_max_pearson_r": 0.013520890648750904,
          "maximum_max_pearson_r": 0.032201627988496115
        }
      }
    }
  },
  "result": {
    "ishizaka_recording_identified_as_video_source": false,
    "reason": "The broad score-recognition statistic is not recording-specific and the direct linear-retiming clone check remains low across all fixed windows."
  },
  "limits": [
    "The source-audio candidates are controls, not an exhaustive recording census.",
    "Candidate search ranges vary with duration and their maxima are not p-values or directly comparable inferential statistics.",
    "Chroma tracks shared harmonic progression; it cannot identify a performer, instrument, editing history, or intended cipher.",
    "The direct clone test does not rule out pitch-preserving time stretching, a remix, an independently rendered MIDI, or arbitrary audio editing.",
    "No author-selected extraction rule maps any remaining musical feature to plaintext."
  ]
}