{
  "artifact": "Tensor-product growth calculator",
  "chapter": "Tensor Products and State-Space Growth",
  "chapter_url": "https://www.steven-geller.com/playground/quantum/book/13-tensor-products-and-state-space-growth/",
  "date_modified": "2026-08-14",
  "dependencies": [],
  "expected_exit_code": 0,
  "expected_stdout": "PASS: 13 tensor calculator verifies 3 product and 2 entangled states; Bell determinant gap=0.500, 30-qubit memory=16.0 GiB\n",
  "fixture_sha256": "63047c03facb2b71fadb03787a0a0b8bbe4087fbf90aa987d7d7e5d116841212",
  "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 Kronecker products against fixtures, preserves norm, verifies 2^n sizing, and checks factorability for selected states.",
  "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."
}