{
  "artifact": "Photonic end-to-end loss and role ledger",
  "chapter": "Photonics",
  "chapter_url": "https://www.steven-geller.com/playground/quantum/book/58-photonics/",
  "date_modified": "2026-08-14",
  "dependencies": [],
  "expected_exit_code": 0,
  "expected_stdout": "PASS: 58 photonic evidence survival=0.09457069 six_dB=0.04739762 mismatch_rejected=True\n",
  "fixture_sha256": "fe85b2231c04b7151ddf730efba0de2ad3ebc7bd9c01e30ee42fe65c60d30097",
  "manifest_test_command": "python3 tools/validate_briefs.py --briefs data/editorial_briefs_36_63.json --from 36 --through 63 --check-rewritten-sources --execute-artifacts",
  "pass_condition": "Calculator reproduces total survival under declared independence, validates percent/decibel conversions, and rejects combining values with mismatched wavelength or test scope without an explicit waiver.",
  "python_requires": ">=3.11",
  "run_command": "python3 fixture.py",
  "schema_version": "1.1.0",
  "test_method": "Run the isolated fixture; require exit code 0 and exact stdout."
}