{
  "schema": "apeiron-ap1-r2c-consistent-hdot-p-continuation-v1.0",
  "updated_utc": "2026-09-02T15:17:25Z",
  "classification": "G22_PASS",
  "method_extension": {
    "name": "piecewise_linear_H_with_derived_midpoint_Hdot",
    "reason": "the canonical mode frequency must use the time derivative of the same H interpolant used by the transfer step",
    "equations_changed": false,
    "physics_changed": false,
    "gates_changed": false,
    "legacy_default_preserved_outside_implicit_DAE": true
  },
  "frozen_thresholds": {
    "dae_max_abs_scaled_residual": 0.0001,
    "ward_normalized": 2e-06,
    "validation_source_relative_change": 0.0001,
    "validation_wronskian_relative_error": 1e-11
  },
  "validated_levels": {
    "17": {
      "dae_max_abs_scaled_residual": 2.4693189357429658e-05,
      "max_abs_friedmann_residual": 1.5129114316250977e-16,
      "ward_normalized": 1.1786824058621962e-07,
      "validation_source_relative_change": 1.9902814220692463e-05,
      "validation_wronskian_relative_error": 4.6e-50,
      "finite": true,
      "positive_H": true,
      "min_H": 8.312497028909656e-08,
      "min_PX": 1.8132335484729594,
      "min_K": 3.016188545394498,
      "gate_pass": {
        "dae_residual": true,
        "max_abs_friedmann_residual": true,
        "ward_normalized": true,
        "validation_source_relative_change": true,
        "validation_wronskian_relative_error": true,
        "structural": true
      }
    },
    "33": {
      "dae_max_abs_scaled_residual": 7.999970928398809e-05,
      "max_abs_friedmann_residual": 1.5128152480799492e-16,
      "ward_normalized": 9.838600989648884e-08,
      "validation_source_relative_change": 1.9806606052665525e-05,
      "validation_wronskian_relative_error": 8.6e-60,
      "finite": true,
      "positive_H": true,
      "min_H": 8.312497028909656e-08,
      "min_PX": 1.8132335484729594,
      "min_K": 3.016188545394498,
      "gate_pass": {
        "dae_residual": true,
        "max_abs_friedmann_residual": true,
        "ward_normalized": true,
        "validation_source_relative_change": true,
        "validation_wronskian_relative_error": true,
        "structural": true
      }
    },
    "65": {
      "dae_max_abs_scaled_residual": 8.03572331844533e-05,
      "max_abs_friedmann_residual": 1.5127815257766294e-16,
      "ward_normalized": 3.7792871908746896e-08,
      "validation_source_relative_change": 1.9792920576849823e-05,
      "validation_wronskian_relative_error": 1.34e-69,
      "finite": true,
      "positive_H": true,
      "min_H": 8.312595082091879e-08,
      "min_PX": 1.8131864526248955,
      "min_K": 3.016047029195706,
      "gate_pass": {
        "dae_residual": true,
        "max_abs_friedmann_residual": true,
        "ward_normalized": true,
        "validation_source_relative_change": true,
        "validation_wronskian_relative_error": true,
        "structural": true
      }
    }
  },
  "rejected_nonpass_diagnostics": {
    "prior_direct_65_lift": {
      "dae_max_abs_scaled_residual": 0.0037621030714251598,
      "stored_or_used_as_seed": false
    },
    "monotonic_refinement": {
      "absolute_gates_all_levels_pass": true,
      "monotonic_refinement_pass": false,
      "best_corrected_65_ward_near_target": 8.849719236283315e-08,
      "required_65_ward_at_most": 8.051035374410731e-08,
      "candidate_stored_or_used_as_seed": false
    }
  },
  "tests": {
    "registered_project_tests_passed": 78,
    "registered_project_tests_total": 78
  },
  "decision": "accept_monotonic_17_33_65_PASS_chain_and_advance_to_AP1_R3",
  "production_curves_released": false,
  "public_mirror": "pending_atomic_site_publication",
  "monotonic_precision_audit": "/Apeiron/AP1/APEIRON_AP1_R2C_G22_MONOTONIC_PRECISION_AUDIT_LATEST.json"
}