# External source check (AST-JOIN-20260831)

Checked 2026-09-04 with `scripts/verify-external-sources.py` (GET, follow redirects, 25s timeout). None of these pages audited this fixture. Machine log: [`external-source-check-AST-JOIN-20260831.json`](./external-source-check-AST-JOIN-20260831.json).

| Source | Requested URL | Final URL | HTTP | Title SHA-256 | Note | Use |
|---|---|---|---|---|---|---|
| Privacy Framework | https://www.nist.gov/privacy-framework | https://www.nist.gov/privacy-framework | 200 | 19305ab321cb736d |  | Privacy and AI-risk context |
| Top 10 for LLM Applications | https://owasp.org/www-project-top-10-for-large-language-model-applications/ | https://owasp.org/www-project-top-10-for-large-language-model-applications/ | 200 | 87974d0c19dc6a5c |  | Untrusted-text risk context |
| arXiv | https://arxiv.org/ | https://arxiv.org/ | 200 | 51714ed5addbce70 |  | Method archive and program-scope context |
| NOAA | https://www.noaa.gov/ | https://www.noaa.gov/ | 504 | 18492d4544b389ad | http 504 | Identifier and schema analogies |
| ORC documentation | https://orc.apache.org/docs/ | https://orc.apache.org/docs/ | 200 | ea2b8a878841df59 |  | File-format context |

Keep original requested URLs. Re-check at decision time.