{
  "every_frame_rendered": 160,
  "source_sha256_verified": true,
  "integrated_keys": 9,
  "original_strokes_assigned": 4,
  "held_background_geometry": true,
  "board_3d_length_variation_fraction": 0.0,
  "fixed_fulcrum_drift_pixels": 0.0,
  "source_angle_estimation": "manual observations; not a calibrated 3D reconstruction",
  "SAM": "SAM2.1 output inspected; mixed-instance segmentation unsuitable for single-board mask-fit gate",
  "numeric_source_mask_fit": "not measured",
  "recognition": "not run",
  "planted_contacts_observed": 0,
  "foot_slide_gate": "not passed; zero planted intervals measured",
  "independent_playback": "not run",
  "release_approved": false,
  "training_ran": false,
  "trace": {
    "source": "native vector character-only exports; original four doodle strokes",
    "min_recall": 0.9951754385964913,
    "min_parts_kept": 1.0,
    "gate_pass": true
  },
  "xsheet_covers_every_frame": true,
  "background_stroke_geometry_unchanged_fraction": 1.0,
  "background_measurement": "One held background vector geometry; foreground helper is a separately keyed actor.",
  "independent_still_review": {
    "source_composition": "bar met",
    "drawing_identity": "bar met",
    "sampled_hinge_action": "bar met",
    "rider_seated_pose": "needs repair",
    "file": "review-v3.json"
  }
}