{
  "accepted_domain_recovery": "Recover ordinary causal-volume results first.",
  "candidate_ids": [],
  "execution_requirement": "independent-metric-missing",
  "gap_id": "frontier-gap:GP-09",
  "held_out_incremental_prediction": "History metric predicts something beyond causal volume and search budget.",
  "independent_replication": "Independent mathematical and empirical review.",
  "kill_criterion": "Metric tracks only causal volume or model resolution.",
  "maturity_state": "deferred",
  "native_equations": "Native spacetime geometry plus an independently warranted history metric.",
  "native_objects": "Minkowski causal volume, model resolution and independently defined history entropy.",
  "no_placement_rival": "Ordinary spacetime volume and model-complexity accounting.",
  "permutation_challenge": "Vary model resolution independently of physical cone geometry.",
  "public_href": "/frontier/v1/gaps/GP-09.json",
  "public_routing_state": {
    "execution": "independent-metric-missing",
    "maturity": "deferred",
    "program": "deferred"
  },
  "question": "Can history entropy be defined independently of Minkowski causal volume, model resolution, and search budget?",
  "receipt_ids": [],
  "revision_ids": [],
  "schema_id": "FrontierGap.v1",
  "source_gap_id": "GP-09",
  "source_refs": [
    {
      "authority": "canonical_gap_owner",
      "json_pointer": "/rows/7",
      "path": "03_METHODOLOGY/00_W7_SCIENCE_INTEGRATION_EXECUTION_REGISTER.yaml",
      "sha256": "sha256:775800070a05ca119a52874e34c86cfb3515ae5c55d1292c06e9115d369f843f"
    },
    {
      "authority": "public_routing_overlay",
      "json_pointer": "/openQuestions/9",
      "path": "12_PUBLIC_SITE/living-map.json",
      "sha256": "sha256:89361e816e74ae838e00013d70ebeddfa4bf9741a7db5e4ce986aa64b4ba9e16"
    }
  ],
  "survivor": "Physical cone and option bundle remain distinct useful objects.",
  "test_ids": [],
  "tier": "[C]",
  "title": "History-bundle metric"
}