{
  "schema": "door-regulator-validation-v1",
  "baseline_commit": "cb8061dd",
  "scope": "Factory Parts-1977 p243 shows regulator and lower/rear channels, and lists AHA8533 RH/AHA8534 LH through GAN6. The unscaled British Auto Salvage donor photo shows parallel arms, two mounting plates, a formed return and a connecting top link. Its fitted identity/hand, proportions and hidden ownership are not established. Existing glass/door/winder poses stay. All pivot coordinates, arm lengths, offsets, plate/sector profiles, bores, roller sizes, channel sections and gauges are construction estimates. Smooth drive-sector/pinion envelopes have no verified teeth, ratio, spring, travel, gear engagement or working linkage. Source pins and bored joints are static recognition, not fitted clearances, loaded support or an operating mechanism. Mounting-plate holes are unassigned comparison features; no actual body drilling map or screw count is inferred. No glass travel, glass run/seal fit, door/impact-bar clearance, fixing access or verified replacement/removal path.",
  "source_groups": 22,
  "valid_positive_step_solids": 74,
  "changed_mesh_payloads": [
    "door_left_glass_carrier_and_rear_guide_comparison",
    "door_left_static_window_regulator_comparison",
    "door_right_glass_carrier_and_rear_guide_comparison",
    "door_right_static_window_regulator_comparison"
  ],
  "unchanged_mesh_payloads": 18,
  "side_checks": {
    "left": {
      "static_source_contacts_mm3": {
        "carrier_and_guide": 0.0,
        "inner_frame": 0.0,
        "impact_bar": 0.0,
        "handle": 0.0
      },
      "pivot_and_roller_axle_material_witnesses": true,
      "carrier_roller_voids": true
    },
    "right": {
      "static_source_contacts_mm3": {
        "carrier_and_guide": 0.0,
        "inner_frame": 0.0,
        "impact_bar": 0.0,
        "handle": 0.0
      },
      "pivot_and_roller_axle_material_witnesses": true,
      "carrier_roller_voids": true
    }
  },
  "sha256": {
    "door-hardware-reference.json": "c6d04bf0d64304195e13d763f9ddc11220903b9b73d4d625c71910aa625464b7",
    "door-hardware-reference.step": "9c44e7980ef7384fb23c1d36223cbc99de50490925d7e498466e385b15d3ca4a"
  }
}