{
  "schema": "predator.public-compiler-pilot.v1",
  "title": "IBM Fez compiler-quality pilot",
  "date": "2026-09-06",
  "backend": "ibm_fez",
  "scope": "One six-variable fixture, two poles, one hardware job; compiler quality, not quantum computational advantage.",
  "hardware_jobs": 1,
  "circuits": 4,
  "shots_per_circuit": 1024,
  "billed_qpu_seconds": 3,
  "two_qubit_gates": {
    "ordinary": 144,
    "joint5": 103,
    "reduction_percent": 28.47222222222222
  },
  "independent_confirmation": false,
  "source_metrics_sha256": "96fc51fc142d3e315084e4d1d215d06abe41b5c57737bc7e14c6305bae1dd304",
  "source_report_sha256": "b1e83633a85b533fba1fb4f4fde97151ee1f68442818b7e5b22cfb5b9e6414d4",
  "compiled_plan_sha256": "a986dcc6c83b2c68294044b93d64434cb221bf7cef49ba7f32557e8f5d1950e1",
  "poles": {
    "vuln": {
      "ordinary_tv": 0.395174696119255,
      "joint5_tv": 0.31652264875085345,
      "absolute_tv_improvement": 0.07865204736840153,
      "relative_tv_reduction_percent": 19.90310820525464,
      "improvement_sampling_only_95_interval": [
        0.03661510031489964,
        0.11740010894452227
      ],
      "ordinary_expected_energy": -2.3453522495288945,
      "joint5_expected_energy": -2.0137675683103016,
      "ordinary_exact_optimum_hits": 0,
      "joint5_exact_optimum_hits": 1
    },
    "fix": {
      "ordinary_tv": 0.40385858268563324,
      "joint5_tv": 0.3079578515744551,
      "absolute_tv_improvement": 0.09590073111117814,
      "relative_tv_reduction_percent": 23.74611688909631,
      "improvement_sampling_only_95_interval": [
        0.052002245992500105,
        0.13595158991557985
      ],
      "ordinary_expected_energy": -2.3668366245288945,
      "joint5_expected_energy": -1.9545898437499998,
      "ordinary_exact_optimum_hits": 2,
      "joint5_exact_optimum_hits": 2
    }
  },
  "uncertainty": {
    "replicates": 2000,
    "seed": 20260906,
    "method": "Independent multinomial plug-in percentile bootstrap",
    "scope": "Sampling only; no calibration drift or independent confirmation coverage."
  },
  "limits": [
    "One fixture and one job; poles are not independent source seeds.",
    "Agreement with the fixed ideal output improved; expected energy increased, so this is not improved minimization.",
    "No source-detection, deep-chain lift, quantum advantage, or supremacy claim.",
    "Public summary is an author-reported extract, not the full raw reproducibility bundle. Source hashes provide identity, not independent verification."
  ]
}