{
  "captured_utc": "2026-09-22T12:35:49Z",
  "execution_location": "this archive build/reproduction environment",
  "checker_revision": "2026-09-22.r2",
  "checker_bytes": 10661,
  "checker_sha256": "ce3e5ea29ca8de60e27e45164903065f340e54826935f88045b0ed715b5e3efe",
  "python": "3.10.21 (main, Aug 13 2026, 19:48:29) [GCC 12.2.0]",
  "numpy": "2.2.6",
  "platform": "Linux-6.12.8+-x86_64-with-glibc2.36",
  "this_archive_runs": [
    {
      "cmd": "python3 verify_boundary_reconstruction.py",
      "exit": 0,
      "stdout_bytes": 897,
      "stdout_sha256": "60ad47fa29f0c7ada869555a393e497411f9c8b08344b2850b71c84a840890b1",
      "stderr": "",
      "checker_sha256": "ce3e5ea29ca8de60e27e45164903065f340e54826935f88045b0ed715b5e3efe"
    },
    {
      "cmd": "python3 -O verify_boundary_reconstruction.py",
      "exit": 0,
      "stdout_bytes": 897,
      "stdout_sha256": "60ad47fa29f0c7ada869555a393e497411f9c8b08344b2850b71c84a840890b1",
      "stderr": "",
      "checker_sha256": "ce3e5ea29ca8de60e27e45164903065f340e54826935f88045b0ed715b5e3efe"
    }
  ],
  "stdout_matches_optimized": true,
  "negative_controls": [
    {
      "mutation": "wrong_expected_mean",
      "optimized": false,
      "exit": 1,
      "stderr": "FAIL\tJ2_spherical_mean_one_twenty_first"
    },
    {
      "mutation": "wrong_expected_mean",
      "optimized": true,
      "exit": 1,
      "stderr": "FAIL\tJ2_spherical_mean_one_twenty_first"
    },
    {
      "mutation": "wrong_polynomial_coefficient",
      "optimized": false,
      "exit": 1,
      "stderr": "FAIL\tJ2_spherical_mean_one_twenty_first"
    },
    {
      "mutation": "wrong_polynomial_coefficient",
      "optimized": true,
      "exit": 1,
      "stderr": "FAIL\tJ2_spherical_mean_one_twenty_first"
    }
  ],
  "result": "TOTAL 30 PASS",
  "pdf_sha256": "a8c9e39e29f283272b3c7dc2933c7dad1a02bc2651ce0341508317de3d295571",
  "note": "Exact Fraction calculation of the J-squared spherical mean; remaining groups use numerical NumPy corroboration. Written proofs are in the original note and supplementary remarks. Distinct from the ChatGPT audit environment (Python 3.12.14 / NumPy 2.3.5)."
}