{
  "key": "ib-12000256",
  "contract": "IB",
  "seeds": {
    "from": 12000256,
    "to": 12000511
  },
  "n": 0,
  "rows": [],
  "sum": 0,
  "sumsq": 0,
  "mean": null,
  "gas_stats": {
    "peak_afterswap": null,
    "mean_afterswap": null,
    "oog": null,
    "reverts": null
  },
  "valid": false,
  "block_seconds": [],
  "engine": "unavailable",
  "blocked": {
    "step": "platform_prerequisite",
    "error": "The operator policy prohibits inspecting or disclosing host platform and installed runtime information. The required Linux x86_64 prerequisite cannot be verified under that policy."
  },
  "notes": "Read the supplied solved README and setup.sh. No engine seeds consumed; no configs built and no run_batch or gas_stats calls made. Empty-sample mean and unmeasured gas statistics are null rather than fabricated integers. valid=false means unvalidated, not an observed gas failure."
}