{
  "schema": "apeiron-ap1-m1-exact-initial-junction-128-freeze-v1.0",
  "updated_utc": "2026-09-02T18:10:41Z",
  "classification": "M1_EXACT_INITIAL_JUNCTION_128_TOLERANCES_FROZEN_HELDOUT_UNSEEN",
  "input_sha256": {
    "APEIRON_AP1_M1_JUNCTION_CONVERGENCE_PILOT_LATEST.json": "c9a65ed48d4fb27af57bb1d13b0963e8f38a8f8d2f165717a614e9a97cd5affb",
    "APEIRON_AP1_M1_EXACT_INITIAL_JUNCTION_TOLERANCES_LATEST.json": "8391cb12ea50d718ed037b29730fc55bdcd88173d81e4444a88ca96e44388a08",
    "APEIRON_AP1_M1_EXACT_INITIAL_JUNCTION_HELDOUT_LATEST.json": "bc5953c65fe07ba857a8bbc218a6072026e81188d53ea9973cc53af2a255cae6",
    "AP1/CODE/ap1_m1_junction_convergence.py": "76455f3fc0bb858050af70468a11ba458fd92747ee678b00c571abc392f8230d",
    "AP1/CODE/ap1_m1_junction_heldout.py": "0097f51422f081e3f07444c8401b7caacc72d37f765d2931f70b54e02dc294fb",
    "AP1/CODE/ap1_m1_junction_128_revalidation.py": "4b4e9f6dc5f65c3b46c3e7ba8aff75704d67c3bc04d56e262bf6b059e5d924a7"
  },
  "chronology_audit": {
    "first_96_result_utc": "2026-09-02T17:57:50Z",
    "first_96_removed_unregistered_sha256": "b3dfba658803c69335ebb85f4c7fb771d0b38cf4fc9ccb712ce6c2e1a4809c1b",
    "strict_96_freeze_utc": "2026-09-02T17:58:09Z",
    "strict_96_result_utc": "2026-09-02T17:58:22Z",
    "96_can_remain_numerical_pilot": true,
    "96_seed_eligibility_revoked": true,
    "96_seed_was_used_for_background": false,
    "reason": "the first 96-shell value existed before the stricter 96-shell caps were written in the shared workspace"
  },
  "junction_rule": {
    "rule": "use exact stored HARD-PASS index 0; determine the physical-N offset by Friedmann inversion; test Raychaudhuri independently against a pre-frozen pilot-derived tolerance",
    "rationale": "implements the specified earliest junction without interpolation or mode reinitialization, maximizes distance from the tachyonic onset, and avoids ill-conditioned interpolated-root families",
    "frozen_before_held_out_evaluation": true
  },
  "reference_96_shell_probe": {
    "stored_index": 0,
    "N_local": 0.0,
    "N_physical": -56.97244594022879,
    "N_offset_physical_minus_local": -56.97244594022879,
    "H_Mpl": 4.296911897956572e-07,
    "required_standard_density_Mpl4": 9.017902368676568e-26,
    "standard_pressure_Mpl4": 3.0059674562255395e-26,
    "quantum_rho_Mpl4": 2.5653546520792134e-21,
    "quantum_pressure_Mpl4": 5.953926856050781e-21,
    "quantum_chi2_Mpl2": 1.7684878106760294e-15,
    "friedmann_residual_Mpl4": -4.936157918492028e-40,
    "friedmann_normalized": -8.91158373533706e-28,
    "raychaudhuri_residual_Mpl2": -6.693933021982061e-21,
    "raychaudhuri_normalized": -3.625504631080858e-08,
    "vacuum_frequency_margin_Mpl2": 6.299255678190488e-09,
    "positive_vacuum_frequency_margin": true
  },
  "thresholds": {
    "heldout_momentum_nodes": 128,
    "evaluation_stride": 2,
    "prefix_intervals": 256,
    "decimal_digits": 80,
    "heldout_delta_caps": {
      "abs_delta_N_physical": 1e-12,
      "relative_delta_required_standard_density": 1e-12,
      "abs_delta_quantum_rho_over_H2": 1e-12,
      "abs_delta_quantum_pressure_over_H2": 1e-12,
      "abs_delta_quantum_chi2_over_scale": 2.5e-15,
      "abs_delta_friedmann_normalized": 1e-20,
      "abs_delta_raychaudhuri_normalized": 1e-12
    },
    "max_abs_raychaudhuri_normalized": 4e-08,
    "max_abs_friedmann_normalized": 1e-06,
    "max_wronskian_relative_error": 1e-11,
    "require_exact_stored_index": 0,
    "require_positive_standard_density": true,
    "require_positive_inherited_frequency_margin": true
  },
  "cap_policy": "carry the already strict 96-shell caps forward unchanged; evaluate 128 exactly once after this hash-bound freeze",
  "gates": {
    "96_numerical_result_pass_but_seed_eligibility_revoked": true,
    "first_96_precedes_strict_96_freeze": true,
    "first_96_unregistered_artifact_removed_before_seed_use": true,
    "strict_caps_carried_forward_unchanged": true,
    "128_shell_value_not_evaluated": true,
    "pilot_and_strict_artifacts_hash_bound": true,
    "background_and_kernel_not_started": true
  },
  "all_128_freeze_gates_pass": true,
  "tolerances_frozen_before_128_shell_heldout": true,
  "heldout_128_evaluated": false,
  "checkpoint_released": false,
  "seed_released": false,
  "new_AP1_M1_background_started": false,
  "physical_response_kernel_started": false,
  "nonpass_stored_or_used_as_seed": false,
  "next_required": "evaluate the unseen 128-shell exact-index-zero probe once; release no seed unless every frozen gate passes",
  "claim_boundary": "chronology repair and 128-shell tolerance freeze only; no accepted M1 seed, background, kernel or observable"
}