{
  "frozen_at": "2026-07-18T23:46:57.951556+00:00",
  "git_sha": "f93f4b5578c221d3d2665f9b305f3e86759be862+dirty",
  "spec": {
    "analysis": "campaign.hump.analyze",
    "hypotheses": [
      {
        "id": "H-hump-exists",
        "prediction": {
          "ci_excludes": null,
          "comparator": "==",
          "effect": null,
          "metric": "hump_interior_present",
          "threshold": 1.0
        },
        "scoreboard_row": null,
        "statement": "an interior gold-reward hump exists in the proxy/gold best-of-n arm"
      },
      {
        "id": "H-hump-loc",
        "prediction": {
          "ci_excludes": null,
          "comparator": "<",
          "effect": null,
          "metric": "hump_kl_abs_error",
          "threshold": 0.5
        },
        "scoreboard_row": null,
        "statement": "the tail-predicted hump location matches the observed one within 0.5 nats"
      }
    ],
    "id": "campaign-hump",
    "kill_criteria": [
      {
        "comparator": ">",
        "id": "K-hump",
        "metric": "hump_kl_abs_error",
        "threshold": 1.0
      }
    ],
    "science": "S03-thermo",
    "subjects": {
      "datasets": [
        "hump-prompts",
        "ppe-human"
      ],
      "extra": {
        "slice_hashes": {
          "hump-prompts": "ds:d3d488deca708627ba24275646b4426f",
          "ppe-human": "ds:f9fa29ebabe6994fded4e9057ec07c10"
        }
      },
      "organisms": [],
      "signals": [
        "policy-qwen25-1.5b",
        "skywork-v2-qwen3-0.6b",
        "skywork-v2-llama31-8b"
      ]
    },
    "title": "The Goodhart hump located from a base-policy tail index",
    "version": 1
  },
  "spec_hash": "spec:ec094a501eddd55553e7007466395ee3",
  "study_id": "study:campaign-hump@v1#ec094a50"
}