{
  "selected": "v2_ear_seam",
  "at": "2026-09-28T17:10:07.163716+00:00",
  "protocol": {
    "date": "2026-09-28",
    "hypothesis": "Fine semantic parts allow separate motion; aligned local generation should reduce appearance drift compared to coarse packed atlas.",
    "budget": "First one head atlas call; expand only after visual inspection. Ordinary CPU image tools and frozen LPIPS.",
    "factors": [
      "old coarse source layers",
      "fine source partitions with identical inherited deformation",
      "fine generated atlas with identical deformation",
      "agent-authored independent fine-part controls"
    ],
    "fixed": [
      "source frame 0",
      "renderer",
      "tail and body trajectories",
      "evaluation masks",
      "metrics"
    ],
    "selection": "validation hair-region LPIPS primary; reject if character LPIPS worsens >2% versus v1; inspect frame0 texture drift separately",
    "scope": "First head/hood/ears/hair because these currently share one deforming sheet. Body remains control.",
    "test_policy": "Previous test frames/results have been exposed in v1. Do not claim a fresh holdout; use dev/val only in this follow-up.",
    "source_scene": "experiments/scenes/11_midpoint_poses.json",
    "source_scene_sha256": "9916cc8263a95e0b1e237fb96522f5eabc9fb944469e8ed2c860069de6a62d66"
  },
  "visual_veto": [
    "v2_coarse_generated_control",
    "v2_completed_independent",
    "v2_ear_extended",
    "v2_generated_shared",
    "v2_source_independent"
  ],
  "reason": "Lowest validation hair-envelope LPIPS among visually accepted candidates, with <=2% character regression.",
  "scene_sha256": "b6d6de5ecee6c591fc799350f3a04f1bf14dab7e9624b7f065e2cb5396c9805c",
  "assets": {
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    "../../../assets/papyrus/body.png": "6621f2618d1aa8fa6bdb83a3d18a4654d8379036074492552ba40850d844cea6",
    "../../../assets/refined_v2/completed_rear_hair.png": "d9d23442b11baa12d6d0e0ff9af87a48d56733ddc242022f150b2ccb3bc314d2",
    "../../../assets/refined_v2/completed_face.png": "1d7cbb9b473de9636ddaf45d89d25f1d62ece059c3b4e3c07cc1f072acae5d06",
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    "../../../assets/refined_v2/completed_hood.png": "d9c1fb8bf09489408da91abc462cba7997c0165e804efd7facc45ae4009a25a4",
    "../../../assets/refined_v2/completed_fringe_left.png": "ad7080f941679492933c73737438f0be2a2686aebbeb311e80339d96f9be2f77",
    "../../../assets/refined_v2/completed_bangs.png": "e24415cb54113a7c225cd21bc460da0ae2d38bdc9121b49546dcaf2a719c22e1",
    "../../../assets/refined_v2/completed_fringe_right.png": "cc1cb239ac4feef5663941b5b1de74bfdcd3e4578c8e6080518913e068caa23d",
    "../../../assets/refined_v2/completed_lock_right.png": "62961eaed35813ee7facb76c4f91e6f7ae217533ac2bf69670f7c97464027d25",
    "../../../assets/refined_v2/completed_crown.png": "daa28507fbb9fe49a96c59e2c153baa3bcdfb1b3303a68888db07211f439189f",
    "../../../assets/papyrus/hair.png": "43d3d2e142bd4bdc1d85d9a5920be3b74e132646e947a7fbc18bc4797bfcbc82",
    "../../../assets/papyrus/eyes_open.png": "bbb08932545ecb85c259a6b5259bfdb240a0883062d135806d529e124ae274ae",
    "../../../assets/papyrus/mouth_open.png": "25ae632460b6b11e29a73e198a32fa6c523fd34ab4550ed91ff45e1e92f2c334"
  },
  "renderer_sha256": "e2ab4cdbca21ab99f89a3b9501b33331d0ea81c1f83fc58159d9d590cda4a213",
  "scorer_sha256": "2887adc296000d2287ea27ce1241f1d046bad31743543939b097fa98e83ab37f",
  "fresh_test_claim": false
}