{
  "artifact": "Gate matrix test bench",
  "chapter": "Matrices as Gates",
  "chapter_url": "https://www.steven-geller.com/playground/quantum/book/11-matrices-as-gates/",
  "date_modified": "2026-08-14",
  "dependencies": [],
  "expected_exit_code": 0,
  "expected_stdout": "PASS: 11 gate bench verifies 5 reference matrices and 16 compositions; max identity error=2.22e-16, sequential error=0.00e+00\n",
  "fixture_sha256": "f487210b9113cd810166461a7697251fe70471989ec5a28ef9e1525718be8df3",
  "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 basis action, H²=I, HZH=X, and agreement between sequential and composed execution.",
  "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."
}