{
  "title": "Birthday Book Specification",
  "origin_url": "https://en.wikipedia.org/wiki/Z_notation",
  "license_guess": null,
  "code_sha256": "aeeaa730d33e6b5d6dfe5760d7638c1869a6fa634ab7a232bae8a54898be705b",
  "added_at": "2026-03-12T10:00:00Z"
}