{
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    "area_weighted_pressure_Pa": -303.73755844747626,
    "authority": "RESEARCH_ONLY",
    "coefficient_comparisons": {
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        "prediction": 0.3068632374015499,
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        "relative_error": 0.011042531149705003
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      "Cl": {
        "prediction": 0.4330888203933332,
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      "Cs": {
        "prediction": 0.03547081850885791,
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    "conclusions": [
      "Published varying reference area and constant reference area do not remove the discrepancy.",
      "Independent pressure/shear integration agrees with the upstream force calculation to roundoff.",
      "Surface fields are exactly aligned to the inference STL cell order; native CFD field correspondence is not established.",
      "Pinned design-sensitivity preprocessing and PhysicsNeMo v2.2 datapipe use different center-of-mass offset scaling. Checkpoint training-path compatibility needs independent confirmation.",
      "Checkpoint uses min-max normalization and disables parameter encoding; the different global reference velocity alone is not established as causal.",
      "No physics acceptance threshold, preprocessing correction, or engineering validation is inferred from this audit."
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    "exact_two_execution_array_repeatability": false,
    "gauge_policy": "Diagnostic sensitivity only. No reference-fitted pressure offset applied.",
    "integrated_force_N": [
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    "native_field_mapping": "NOT_ESTABLISHED_DIFFERENT_TOPOLOGY",
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    "physical_validation": "NOT_ESTABLISHED",
    "pressure_force_N": [
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    "repeat_comparison": {
      "aerodynamic_force": {
        "exact_array_equal": true,
        "max_absolute_difference": 0.0,
        "shape": [
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        ]
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      "geometry_coordinates": {
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        "max_absolute_difference": 0.0,
        "shape": [
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        ]
      },
      "geometry_sensitivity": {
        "exact_array_equal": false,
        "max_absolute_difference": 0.0007534027099609375,
        "shape": [
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        ]
      },
      "pred_surf_pressure": {
        "exact_array_equal": true,
        "max_absolute_difference": 0.0,
        "shape": [
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      },
      "pred_surf_wall_shear_stress": {
        "exact_array_equal": true,
        "max_absolute_difference": 0.0,
        "shape": [
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    "state": "DISCREPANCY_RETAINED_CAUSE_NOT_ESTABLISHED",
    "strict_determinism_claim": false,
    "subtracting_mean_pressure_would_change_force_N": [
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      -4.606520229077361e-07,
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    "surface_cells": 753234,
    "surface_points": 376531,
    "upstream_force_N": [
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  "date": "2026-09-24",
  "hardware": "NVIDIA GeForce RTX 3090",
  "live_private_runtime_changed": false,
  "original_runtime_source_immutability": {
    "checked": 230,
    "mismatch": 0,
    "mismatched_files": [],
    "missing": 0,
    "missing_files": [],
    "original_manifest_sha256": "fe54097134ee75af2e84b528f8d32c393c9443c02a92366b86dd1599ea920e79",
    "source_unchanged": true
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  "peak_torch_allocated_bytes": 3127602176,
  "pretrained_scientific_validation": "NOT_ESTABLISHED",
  "revision": "2.3",
  "software_versions": {
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    "nvidia-physicsnemo": "2.2.0",
    "pyvista": "0.47.0",
    "torch": "2.10.0+cu130"
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  "source_audit": {
    "action": "Retain upstream workflow unchanged. Obtain checkpoint-compatible preprocessing/reference expectation before claiming field accuracy.",
    "checkpoint_revision": "35b1bf1edafdaa2600d16182825890cd51c07427",
    "comparison": {
      "center_of_mass_offsets": "Design workflow uses physical-coordinate offsets; v2.2 datapipe normalizes coordinates and COM before subtraction when normalize_coordinates=true.",
      "checkpoint_training_preprocessing_identity": "NOT_ESTABLISHED",
      "global_reference_velocity": "Workflow supplies actual velocity as reference; checkpoint config lists 30. Parameter encoding is false, so this difference is not established as causal.",
      "normalization": "Checkpoint config uses min_max_scaling; no mean/std correction justified."
    },
    "design_workflow_commit": "0612ec4ed54484a47bfa134eda7b3b012a607624",
    "finding": "PREPROCESSING_PATH_DIFFERENCE_OBSERVED_CAUSAL_EFFECT_NOT_ESTABLISHED",
    "qualification_effect": "NONE",
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  "witness_verification": {
    "applicability": "NOT_ESTABLISHED",
    "authority": "RESEARCH_ONLY",
    "can_satisfy_qualification_gate": false,
    "eligible_for_supporting_interpretation": false,
    "independence": {
      "level": "LOW",
      "reason": "Training labels and comparison share the same solver family"
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    "result_sha256": "8c15f94d6e97f3401cd618d0cf1ba7154e38f59a9c6479f5025db998795867d3",
    "source_type": "PHYSICS_AI_RESULT",
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