{
  "schema": "nullradial-s4-registered-master-freeze/v1",
  "study_id": "NULLRADIAL-S4-REGISTERED-20260830-002",
  "status": "frozen-before-inference",
  "purpose": "Bounded internal screen of candidate-vs-exact-pixel-permutation effects on generic person detector outputs.",
  "evidence_boundary": [
    "digital composites only",
    "generic person detection only",
    "no face, identity, biometric, license-plate, access-control, or safety-critical test",
    "not physical validation, independent certification, universal transfer, or evidence that AI cannot see a person"
  ],
  "candidate_count": 15,
  "candidates": [
    {
      "candidate_id": "NR-S3-MANDELBROT-GARDEN-V001",
      "family_id": "NR-S3-F01",
      "name": "Mandelbrot Garden",
      "sha256": "a8f71c0a8f2108e15cc9d89a4ab1aa8b82c4c432c0240907bfc65aaacbb91481",
      "master_path": "lab/assets/candidates-s3/mandelbrot-garden-s3-10-2048.png"
    },
    {
      "candidate_id": "NR-S3-STRANGE-ATTRACTOR-VELVET-V001",
      "family_id": "NR-S3-F02",
      "name": "Strange Attractor Velvet",
      "sha256": "384115e7a218d8f12cf7d02a27112b30f1280a88338fab39b676b2a759925ea8",
      "master_path": "lab/assets/candidates-s3/strange-attractor-velvet-s3-11-2048.png"
    },
    {
      "candidate_id": "NR-S3-VORONOI-CATHEDRAL-V001",
      "family_id": "NR-S3-F03",
      "name": "Voronoi Cathedral",
      "sha256": "a6a460e750ccfb32d9e07524a218c23379e291d1845b66ec6beb90ef02d02762",
      "master_path": "lab/assets/candidates-s3/voronoi-cathedral-s3-12-2048.png"
    },
    {
      "candidate_id": "NR-S3-INTERFERENCE-BLOOM-V001",
      "family_id": "NR-S3-F04",
      "name": "Interference Bloom",
      "sha256": "5a17f82f7bfb2cdd2010cddf18beb46663a38644e4fa11c0ab633f7913791ec2",
      "master_path": "lab/assets/candidates-s3/interference-bloom-s3-13-2048.png"
    },
    {
      "candidate_id": "NR-S3-PENROSE-CANOPY-V001",
      "family_id": "NR-S3-F05",
      "name": "Penrose Canopy",
      "sha256": "94cbcaa3a4da426e2b6289436c9d48366a0a4069d606d4be3be8b33ad2385d5f",
      "master_path": "lab/assets/candidates-s3/penrose-canopy-s3-14-2048.png"
    },
    {
      "candidate_id": "NR-S3-REACTION-DIFFUSION-NOIR-V001",
      "family_id": "NR-S3-F06",
      "name": "Reaction Diffusion Noir",
      "sha256": "9212d91d592a3823cdbe736b3d75e66a2fa9184ea74a1bac98d1e9dfcdaa4e10",
      "master_path": "lab/assets/candidates-s3/reaction-diffusion-noir-s3-15-2048.png"
    },
    {
      "candidate_id": "NR-S3-L-SYSTEM-BROCADE-V001",
      "family_id": "NR-S3-F07",
      "name": "L-System Brocade",
      "sha256": "86b0c1c19ca86738f599e0c21352bc47f26b3d249f5677bd0eb5031fc6600ef7",
      "master_path": "lab/assets/candidates-s3/l-system-brocade-s3-16-2048.png"
    },
    {
      "candidate_id": "NR-S3-MOIRE-CHRYSALIS-V001",
      "family_id": "NR-S3-F08",
      "name": "Moire Chrysalis",
      "sha256": "16b0cdd348df59bfc942912ba3d353e15d296cbe0b6d61a5cbe1a611579f1170",
      "master_path": "lab/assets/candidates-s3/moire-chrysalis-s3-17-2048.png"
    },
    {
      "candidate_id": "NR-S3-SPECTRAL-MOSS-V001",
      "family_id": "NR-S3-F09",
      "name": "Spectral Moss",
      "sha256": "19946b20d14f0671bf98f0807ee8c9fe89e82f34d31e156d6305f26d0ef18754",
      "master_path": "lab/assets/candidates-s3/spectral-moss-s3-18-2048.png"
    },
    {
      "candidate_id": "NR-S3-BROKEN-HALO-II-V001",
      "family_id": "NR-S3-F10",
      "name": "Broken Halo II",
      "sha256": "08de4d5557bdd52c00c3b1f97f7b5d4aaf48bd91e1d9b8aa80b6ba5d36b799ad",
      "master_path": "lab/assets/candidates-s3/broken-halo-ii-s3-19-2048.png"
    },
    {
      "candidate_id": "NR-S3-PRISM-MYCELIUM-V001",
      "family_id": "NR-S3-F11",
      "name": "Prism Mycelium",
      "sha256": "189b843ca9aca98bc2613731947d278bad5b140f8ba63078e598870b3f38e10f",
      "master_path": "lab/assets/candidates-s3/prism-mycelium-s3-20-2048.png"
    },
    {
      "candidate_id": "NR-S3-ORNAMENTAL-BASIN-V001",
      "family_id": "NR-S3-F12",
      "name": "Ornamental Basin",
      "sha256": "ad16c15b6fea08396e4930151e6e3571b7abe0bf47403cfedbada0d90cf0fdce",
      "master_path": "lab/assets/candidates-s3/ornamental-basin-s3-21-2048.png"
    },
    {
      "candidate_id": "NR-S4-RECURSIVE-CAUSTIC-LATTICE-P001",
      "family_id": "NR-S4-F01",
      "name": "Recursive Caustic Lattice",
      "sha256": "6d53a0fc8607c99bfbccd3122d2b6963dd684fb28c8feab6632f087340f57573",
      "registration_status": "registered-s4-derived-master",
      "master_path": "lab/assets/candidates-s4/recursive-caustic-lattice-s4-22-2048.png"
    },
    {
      "candidate_id": "NR-S4-ANISOTROPIC-QUASICRYSTAL-VEIL-P001",
      "family_id": "NR-S4-F02",
      "name": "Anisotropic Quasicrystal Veil",
      "sha256": "1780f390322c53b318a40b8921f6d48e254cc178b742c9c643a25d09bb18cfa8",
      "registration_status": "registered-s4-derived-master",
      "master_path": "lab/assets/candidates-s4/anisotropic-quasicrystal-veil-s4-23-2048.png"
    },
    {
      "candidate_id": "NR-S4-MULTISCALE-OCCLUSION-BLOOM-P001",
      "family_id": "NR-S4-F03",
      "name": "Multiscale Occlusion Bloom",
      "sha256": "9763bd620c518490ce4118583a12f8ac0c7612070e9a08370c65d9de48cc5b29",
      "registration_status": "registered-s4-derived-master",
      "master_path": "lab/assets/candidates-s4/multiscale-occlusion-bloom-s4-24-2048.png"
    }
  ],
  "scenes": [
    {
      "scene_id": "synthetic-editorial-single",
      "source_path": "assets/campaign-masters/nullradial-release-shirt.png",
      "source_sha256": "9f17f729a094a277a64f57098a7da1676b97b3301edb004ae4fb18a189df5201",
      "dimensions": [
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      ],
      "provenance": "OpenAI built-in image generation, 2026-08-30; project-owned campaign master; synthetic depicted person",
      "ground_truth": [
        {
          "object_id": "person-01",
          "class": "person",
          "box_xyxy": [
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          ]
        }
      ],
      "garment_polygons": [
        [
          [
            421,
            355
          ],
          [
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          ],
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            220,
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          ],
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          ],
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          ],
          [
            686,
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          ]
        ]
      ]
    },
    {
      "scene_id": "synthetic-catalog-pair",
      "source_path": "assets/campaign-masters/nullradial-catalog-shirt.png",
      "source_sha256": "74c0a513024b45d738bf2869f5d3233e948828eded84214b4cdd6198011e348c",
      "dimensions": [
        1664,
        936
      ],
      "provenance": "OpenAI built-in image generation, 2026-08-30; project-owned campaign master; synthetic depicted people",
      "ground_truth": [
        {
          "object_id": "person-01",
          "class": "person",
          "box_xyxy": [
            360,
            42,
            842,
            936
          ]
        },
        {
          "object_id": "person-02",
          "class": "person",
          "box_xyxy": [
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            936
          ]
        }
      ],
      "garment_polygons": [
        [
          [
            510,
            220
          ],
          [
            430,
            265
          ],
          [
            366,
            535
          ],
          [
            451,
            564
          ],
          [
            459,
            778
          ],
          [
            780,
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          ],
          [
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          [
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          ],
          [
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          ]
        ],
        [
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          ],
          [
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          ],
          [
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          ]
        ]
      ]
    }
  ],
  "models": [
    {
      "detector_id": "yolov10n-onnx-community",
      "family": "one-stage",
      "model_path": "lab/models/yolov10n.onnx",
      "model_sha256": "a77dd863933f184a19e84361c64b788228a7c7dacc2c78939239a96ad3efca3b"
    },
    {
      "detector_id": "detr-resnet50-quantized-xenova",
      "family": "transformer-set-detector",
      "model_path": "lab/models/detr-resnet-50-quantized.onnx",
      "model_sha256": "cae09a307ed9247da7e2ce8bcf81522a6817f1ea2e82b9c4dde59f5964b62b4f",
      "config_sha256": "2daaf8af0b4fe9d075fd728a6967b89a1084849d1b25de26338f97cd6ef41466",
      "preprocessor_sha256": "fd7b4c38d03d99e37f75eebba889e064db89fed8fd451139442d010a11f2dc5e"
    }
  ],
  "render": {
    "candidate_scale": "one fixed relative scale",
    "repeat_px": "round(0.25 * min(scene_width, scene_height))",
    "seam_state": "square tile with phase reset at each repeat; S3 sources are seam-variable, not exact-repeat",
    "shading": "GaussianBlur(radius=max(8, round(min(scene_size)*0.018))) of source luminance; factor=0.58+0.72*luminance",
    "mask": "hard, single-annotator garment polygons; no antialias or feather",
    "control": "all final RGB tuples inside the same hard mask are permuted without replacement",
    "control_seed_root": 2026083005,
    "per_pair_seed": "first 64 bits of SHA256(study_id|scene_id|candidate_id|control_seed_root)"
  },
  "evaluation": {
    "raw_inference_floor": 0.001,
    "reported_confidence_threshold": 0.25,
    "ground_truth_match_iou": 0.5,
    "matching": "confidence-descending unique assignment of person detections to unmatched ground-truth boxes with IoU>=0.50",
    "confidence_for_miss": 0.0,
    "primary_contrast": "candidate minus paired exact-pixel-permutation control",
    "units": "ground-truth person within detector and scene; descriptive aggregation only",
    "beauty_or_demand_in_performance": false
  },
  "known_design_limits": [
    "two synthetic still scenes, three person instances, and two detector families only",
    "ground-truth boxes and garment masks are one internal annotator without blinded adjudication",
    "threshold 0.25 is inherited from the prior harness rather than calibrated on an independent clean partition",
    "pixel permutation preserves the exact RGB multiset but deliberately destroys garment shading organization as well as candidate organization",
    "one tiled scale and one seam state; no viewpoint, range, camera ISP, motion, occlusion, illumination, compression, fold, or physical-print variation",
    "image-generated scenes may differ materially from camera photographs",
    "candidate generation and this registered-master screen are not a sealed independent confirmation partition"
  ],
  "runtime_source_sha256": "e7fcac78b1f567f931a394a5cebff4364954043e9c4af555c1dffdf8dc0480b8",
  "protocol_fingerprint_sha256": "217e48da5510a3bf347497e4c7d46a1ec9188f66216f64dd5e9a0fde323bd19a"
}