{
  "frozen_at": "2026-07-18T23:46:57.951556+00:00",
  "git_sha": "f93f4b5578c221d3d2665f9b305f3e86759be862+dirty",
  "spec": {
    "analysis": "campaign.surgery.analyze",
    "hypotheses": [
      {
        "id": "H-erase",
        "prediction": {
          "ci_excludes": null,
          "comparator": ">",
          "effect": null,
          "metric": "exploit_drift_reduction",
          "threshold": 0.8
        },
        "scoreboard_row": null,
        "statement": "LEACE erasure of the flagged direction removes the exploit"
      },
      {
        "id": "H-retain",
        "prediction": {
          "ci_excludes": null,
          "comparator": ">",
          "effect": null,
          "metric": "rb2_accuracy_delta_after_erasure",
          "threshold": -0.01
        },
        "scoreboard_row": null,
        "statement": "benchmark accuracy is retained through the erasure"
      }
    ],
    "id": "campaign-surgery",
    "kill_criteria": [
      {
        "comparator": "<",
        "id": "K-surgery",
        "metric": "exploit_drift_reduction",
        "threshold": 0.1
      }
    ],
    "science": "S12-hackability",
    "subjects": {
      "datasets": [
        "hack-probes",
        "rb2-full"
      ],
      "extra": {
        "slice_hashes": {
          "hack-probes": "ds:ca165410bd0e2764592669180b29d698",
          "rb2-full": "ds:92765fc94e2b8231914d5119670e53bc"
        }
      },
      "organisms": [],
      "signals": [
        "hackfore-flagged"
      ]
    },
    "title": "Certified erasure removes the exploit without benchmark loss",
    "version": 1
  },
  "spec_hash": "spec:98769c52f2669fc0e08b554b07393a0b",
  "study_id": "study:campaign-surgery@v1#98769c52"
}