{
  "schema": "front-drive-photo-validation-v1",
  "groups": {
    "water_pump_catalog_reference_provisional": {
      "valid_positive_solids": 17,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "fan_clutch_tolerance_ring_UKC759_catalog_reference_provisional": {
      "valid_positive_solids": 22,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "fan_clutch_catalog_reference_provisional": {
      "valid_positive_solids": 127,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "fan_four_mount_bolts_catalog_length_provisional": {
      "valid_positive_solids": 8,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "fan_four_nuts_washers_catalog_reference_provisional": {
      "valid_positive_solids": 8,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "water_pump_gasket_photo_scaled_provisional": {
      "valid_positive_solids": 1,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "water_pump_three_studs_catalog_length_provisional": {
      "valid_positive_solids": 3,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "water_pump_three_nuts_catalog_reference_provisional": {
      "valid_positive_solids": 3,
      "source_dimensions_volume_and_mesh_topology_held": true
    },
    "front_drive_photo_pitched_fan": {
      "valid_positive_solids": 1,
      "mesh_native_relative_volume_error": 0.00030708359048148113
    },
    "front_drive_photo_dished_pump_sheave": {
      "valid_positive_solids": 1,
      "mesh_native_relative_volume_error": 0.0005340566263710145
    }
  },
  "fan_connected_native_solid": true,
  "four_local_fan_bores_open": true,
  "reviewed_features_used_in_construction_not_independent_accuracy_validation": true,
  "observed_surface_distances": {
    "600": {
      "former_native_mm": 41.66587021785395,
      "current_native_mm": 0.779369138561796
    },
    "914": {
      "former_native_mm": 37.91980946185074,
      "current_native_mm": 0.02598385854155296
    },
    "688": {
      "former_native_mm": 34.023149804184584,
      "current_native_mm": 0.5162683246614737
    },
    "1348": {
      "former_native_mm": 29.74708337039599,
      "current_native_mm": 0.6963917357422917
    },
    "1344": {
      "former_native_mm": 11.408274223791295,
      "current_native_mm": 0.12136006206058425
    },
    "1121": {
      "former_native_mm": 40.054562624277274,
      "current_native_mm": 0.15851696217446504
    },
    "1151": {
      "former_native_mm": 31.746269657255482,
      "current_native_mm": 1.0749764972025806
    }
  },
  "median_surface_distance_native_mm": {
    "former_native_mm": 34.023149804184584,
    "current_native_mm": 0.5162683246614737
  },
  "source_intersections_mm3": {
    "upper_hose": {
      "former_static_fan_mm3": 2782.777584403231,
      "current_static_fan_mm3": 0.0
    },
    "upper_outlet": {
      "former_static_fan_mm3": 446.1162340277663,
      "current_static_fan_mm3": 0.0
    },
    "upper_cover": {
      "former_static_fan_mm3": 0.0,
      "current_static_fan_mm3": 0.0
    },
    "cooling_frame": {
      "former_static_fan_mm3": 0.0,
      "current_static_fan_mm3": 0.0
    },
    "radiator_core": {
      "former_static_fan_mm3": 0.0,
      "current_static_fan_mm3": 0.0
    },
    "pump_to_retained_housing": {
      "current_mm3": 0.0,
      "nearest_source_distance_mm": 31.78049716414141
    }
  },
  "pump_receiver_reference_station_offset_mm": 90.0,
  "belt_lane_reference_station_difference_mm": {
    "original_crank": 28.5,
    "photo_alternator": 51.5
  },
  "limits": "Conditional native geometry checks only. Contacts and reference station differences are reconstruction discrepancies, not actual-car clearances. Blade count, hidden interfaces, common body registration, full rotational sweep and replacement paths remain unverified."
}