{
  "artifact": "Superdense coding protocol harness",
  "chapter": "Superdense Coding",
  "chapter_url": "https://www.steven-geller.com/playground/quantum/book/24-superdense-coding/",
  "date_modified": "2026-08-14",
  "dependencies": [],
  "expected_exit_code": 0,
  "expected_stdout": "PASS: 24 superdense circuit codewords=4 decoded=4 no_ebit_outputs=2\n",
  "fixture_sha256": "976992f85992099ba53c7830f26f63999aa1f0af9275f82b3523c1243f4441c0",
  "manifest_test_command": "python3 tools/validate_briefs.py --briefs data/editorial_briefs_00_35.json --from 0 --through 35 --check-rewritten-sources --execute-artifacts",
  "pass_condition": "Tests every message maps to a unique decoded bit pair, rejects runs without the shared Bell pair, and reports transmitted-qubit plus ebit resources.",
  "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."
}