# External source check (EDA-SKU-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-EDA-SKU-20260831.json`](./external-source-check-EDA-SKU-20260831.json).

| Source | Requested URL | Final URL | HTTP | Title SHA-256 | Note | Use |
|---|---|---|---|---|---|---|
| Assessing Data Reliability | https://www.gao.gov/products/gao-20-283g | https://www.gao.gov/products/gao-20-283g | 200 | 4b63162eff92e4ec |  | Accuracy, completeness, and fitness-for-purpose context |
| AQuA Book | https://www.gov.uk/guidance/the-aqua-book | https://www.gov.uk/guidance/the-aqua-book | 200 | f618e2989914313f |  | Analytical quality-assurance context |
| Quarterly Retail E-Commerce methodology | https://www.census.gov/retail/ecommerce/how_surveys_are_collected.html | https://www.census.gov/retail/ecommerce/how_surveys_are_collected.html | 200 | cf3459f418954710 |  | Official population, estimation, and revision example |
| Research Organization Registry | https://ror.org/ | https://ror.org/ | 200 | e1fc7a128d5bc89a |  | Organization-identifier context only |
| RFC 7946 | https://www.rfc-editor.org/rfc/rfc7946.html | https://www.rfc-editor.org/rfc/rfc7946.html | 200 | — |  | Geographic data format context |

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