The assessment was built by ~52 subagents, so its claims are re-checked here. Automated: is each domain's site live, do the crosswalked Open Data assets actually exist on Socrata, are observed-API endpoints reachable. Plus a manual deep-verify of the boldest qualitative claims. Sites returning 401/403/429/503 are "gated" (live but bot/auth-walled), not dead.
The boldest claims, re-probed against live sources.