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  ],
  "xsheet": [
    {
      "f": 0,
      "kind": "K",
      "note": "Funnel framed by street trees; top cloud cropped."
    },
    {
      "f": 1,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 2,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 3,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 4,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 5,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 6,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 7,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 8,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 9,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 10,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 11,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 12,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 13,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 14,
      "kind": "K",
      "note": "Upper contours shift while foreground drops in the camera."
    },
    {
      "f": 15,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 16,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 17,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 18,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 19,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 20,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 21,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 22,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 23,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 24,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 25,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 26,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 27,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 28,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 29,
      "kind": "K",
      "note": "Broad column continues behind the trees."
    },
    {
      "f": 30,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 31,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 32,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 33,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 34,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 35,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 36,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 37,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 38,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 39,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 40,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 41,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 42,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 43,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 44,
      "kind": "K",
      "note": "Lower funnel remains occluded; no contact or rotation inferred."
    },
    {
      "f": 45,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 46,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 47,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 48,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 49,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 50,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 51,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 52,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 53,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 54,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 55,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 56,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 57,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 58,
      "kind": "K",
      "note": "Camera settles; contour narrows slightly."
    },
    {
      "f": 59,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 60,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 61,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 62,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 63,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 64,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 65,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 66,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 67,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 68,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 69,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 70,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 71,
      "kind": "B",
      "note": "Same native three-stroke topology, smooth keyed source contour."
    },
    {
      "f": 72,
      "kind": "K",
      "note": "Last retained contour before later credits."
    }
  ],
  "planes": [
    {
      "id": "sky",
      "source": "held paper sky drawn by agent"
    },
    {
      "id": "tornado",
      "source": "QuickDraw original three strokes key6522189199179776"
    },
    {
      "id": "trees_street",
      "source": "drawn once by agent from source frame7, receives camera translation"
    }
  ],
  "camera": {
    "method": "manual pole/tree landmark registration at six observed source times; LK rejected as unstable",
    "pose_coordinates": [
      320,
      240
    ],
    "background_overscan": true
  },
  "source_segmentation": {
    "branch": "wave2-track/tornado",
    "commit": "6c0f7bc661837f4c71dd12ee9f1c2d5622654757",
    "model": "facebook/sam2.1-hiera-small",
    "track_sha256": "93e75f6cd168aaee45a4cdb4c997320ec368ffbbc89e7ad69978faaf143e79f4",
    "clip_sha256": "3920a82517658c308fa7d27f4c40cebe8e3c735d7363291da1b181fe70535fcf",
    "source_sha256": "a46e407ad8c497d5acdc019c3afa53f826079f91ad954e5b5b61ead4f50bac2a",
    "snapshot_policy": "Pinned clip/track JSON and audited evidence retained; bulk source frames/depth not copied. Mask rejected for object fitting.",
    "valid_for_object_fit": false,
    "reason": "Mask switches from most sky to foreground tree and back; model confidence is not correctness."
  },
  "assembly_summary": "The native three-stroke funnel changes contour behind one held street, tree and utility-pole drawing. Camera movement follows manually observed landmarks. Rotation is not inferred.",
  "review_status": "still_pass_playback_pending",
  "review_note": "Independent review passed the six still poses and original doodle identity. Recognition, valid silhouette fit and normal-speed motion approval remain pending. No training ran.",
  "training_ran": false,
  "motion_approved": false,
  "train_eligible": false
}