{
  "scope": "Local reference construction, source preservation and conditional photo reproduction only; not fitted dimensions, clearance, seal or procedure.",
  "source_commit": "f6b2f4f0",
  "source_sha256": {
    "intake-mounting-reference.step": "7c33d9bf444a789c2f05aa120e24bca2207cc53342a71f39de946eefbe86bdf3",
    "intake-mounting-reference.json": "49f8bb2d11a4eae97f73327e368e7938d639659db3cc2b8cffa1e11a79d3acc5",
    "rocker-breather-photo-evidence.json": "578fa121696568fbbc14f3f346b395172b4bc9fac9e7fc06843681b32b655fc2",
    "breather-loop-photo-reference.json": "0c4e59f2a5ba5fb3f7d4b54abee6298956c0ecda9c350dd6ce4f423163e81fa3"
  },
  "conditional_photo_proxies_reproduced": true,
  "unchanged_prior_intake_meshes": 30,
  "new_groups": 5,
  "new_solids": 5,
  "cover_material_held_outside_two_outlet_regions": true,
  "local_pair_contacts_mm3": {
    "rocker_cover_photo_station_reference / rocker_breather_curved_trunk_and_open_forward_boundary": 0.0,
    "rocker_breather_relocated_source_clamp / rocker_breather_curved_trunk_and_open_forward_boundary": 0.0,
    "rocker_cover_photo_station_reference / rocker_breather_relocated_source_clamp": 0.0,
    "rocker_breather_curved_trunk_and_open_forward_boundary / rocker_breather_wrapped_junction_external_sleeve": 0.0,
    "rocker_breather_visible_side_leg_open_boundaries / rocker_breather_wrapped_junction_external_sleeve": 0.0
  },
  "obstacle_contacts_mm3": {
    "rocker_breather_curved_trunk_and_open_forward_boundary": {
      "intake_reconstructed_manifold_with_exposed_neck_and_flange": 0.0,
      "intake_head_with_reference_flat_manifold_land": 0.0,
      "zenith_stromberg_photo_catalog_reference_provisional": 0.0
    },
    "rocker_breather_relocated_source_clamp": {
      "intake_reconstructed_manifold_with_exposed_neck_and_flange": 0.0,
      "intake_head_with_reference_flat_manifold_land": 0.0,
      "zenith_stromberg_photo_catalog_reference_provisional": 0.0
    },
    "rocker_breather_wrapped_junction_external_sleeve": {
      "intake_reconstructed_manifold_with_exposed_neck_and_flange": 0.0,
      "intake_head_with_reference_flat_manifold_land": 0.0,
      "zenith_stromberg_photo_catalog_reference_provisional": 0.0
    },
    "rocker_breather_visible_side_leg_open_boundaries": {
      "intake_reconstructed_manifold_with_exposed_neck_and_flange": 0.0,
      "intake_head_with_reference_flat_manifold_land": 0.0,
      "zenith_stromberg_photo_catalog_reference_provisional": 0.0
    }
  },
  "mesh_native_relative_volume_errors": {
    "rocker_cover_photo_station_reference": 0.00033406341571806664,
    "rocker_breather_curved_trunk_and_open_forward_boundary": 0.000872998010283621,
    "rocker_breather_relocated_source_clamp": 0.00023596962215255424,
    "rocker_breather_wrapped_junction_external_sleeve": 0.0010549809677787847,
    "rocker_breather_visible_side_leg_open_boundaries": 0.0010573321904659982
  },
  "open_trunk_boundaries": true,
  "limits": "No fitted hose dimensions, sealed joint, hidden T bore, valve, orifice, flame-trap identity, canister/carburator destination, complete forward loop, pressure behavior, operating clearance or verified removal path. Open modeled ends are evidence boundaries, not actual cut ends. Source 154220 7/16-inch hose bore and Jubilee clamp dimensions remain supplier comparisons.",
  "loop_revision": {
    "baseline_commit": "1e145437",
    "unchanged_meshes": 34,
    "changed_meshes": [
      "rocker_breather_curved_trunk_and_open_forward_boundary"
    ],
    "fit_reproduced": true,
    "open_boundary_mm": [
      -207.6386792234764,
      91.26324575741445,
      146.5896132429986
    ],
    "boundary_tangent": [
      -0.8354717934656278,
      -0.379056581354521,
      -0.39787308335089794
    ],
    "retained_parameter_interval": [
      0,
      0.89
    ],
    "centerline_length_estimate_mm": 121.62000018375142,
    "minimum_centerline_radius_estimate_mm": 24.694471971984477,
    "smoothing_sensitivity_max_native_mm": {
      "0.15": 5.4225140277788535,
      "0.6": 2.9640340343878564
    },
    "limits": "Existing cameras and engine similarity depend on unmeasured152mm stud spacing and interpreted cap-face orientation. Manual centerline picks, foreshortening, occlusion and smoothing limit the result. Reprojection error is image agreement, not positional accuracy. The far boundary stops at the shortest three-view coverage; the initial wrap-plane connection is held construction. The remaining curl, hidden carburetor seat, port identity, complete remote circuit, replacement length, thermal/loaded clearance and removal path remain unverified. The inherited17mm outside diameter and7/16-inch bore remain estimates/comparisons. No nearby component is moved to manufacture clearance."
  }
}