{
  "geometry_mask_revision": {
    "shell": {
      "basis": "geometry and inlet identity, not results",
      "cutoff_z_m": 0.11999521810283136,
      "historical_mask": "x<=0.05 retained separately",
      "inlet_centroid_z_m": 0.16999521810283136,
      "inlet_patch": "upper",
      "predicate": ">="
    },
    "tube": {
      "basis": "geometry and inlet identity, not results",
      "cutoff_z_m": 0.049999998762768734,
      "historical_mask": "x<=0.05 retained separately",
      "inlet_centroid_z_m": -1.2372312684777099e-09,
      "inlet_patch": "lower",
      "predicate": "<="
    }
  },
  "missing_independent_decisions": [
    "Explicit time aggregation for mass gate (ratio of means and max instantaneous disagree on continuation).",
    "Absolute pressure datum and independently justified physical property coverage.",
    "Numeric interface-temperature continuity tolerance, absent from frozen case.",
    "Geometry-backed inlet region replacing x<=0.05 only in a new versioned contract.",
    "Cadence and aggregation of native field-stationarity checkpoints; endpoint comparisons do not establish an unobserved time history."
  ],
  "no_new_CFD": true,
  "note": "No unsupported tolerance/reference pressure invented. This is an explicit blocked contract checklist, not a frozen acceptance contract.",
  "numeric_limits_unchanged": {
    "energy": 0.01,
    "local_q95": 0.01,
    "mass": 1e-06,
    "mesh": 0.01,
    "stationarity_rms": 0.001,
    "temperature_span_K": 0.01
  },
  "preserve_contract": "69c313e870b569cd0b360e689b52e1e8349c33a11111c3cad5f89bac8ff4404f",
  "retention_plan_sha256": "56334b76c755031dc3e07bbd31cf220a015eacbf75feace2c8f0ef86f9a63114",
  "state": "DRAFT_NOT_AUTHORIZED_FOR_EXECUTION"
}