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Try UVO yourself

Type a claim about an EU regulation. The Ultimate Verification Oracle decomposes it into atomic facts, checks each against the actual regulation text we ingested from the EU Publications Office, and returns a cryptographically signed receipt. Try a hallucination — see it caught.

Try one of these — or write your own below

Result

Pick a preset or type a claim above, then click Verify claim.

Behind the scenes

Every verification runs through 9 independent layers of defense:

Step −1 — KG input-level anti-pattern check (Phase 4)
Step 0 — Per-atom KG anti-pattern check (Phase 2 + Sprint-10 auto-promoted)
Step 0.5 — Article-level token-overlap lookup against ingested regulation text (Phase 3)
Step 0.6 — Two-stage direction-aware Haiku check (Sprint 9 + Sprint 11)
Step 0.65 — RTS cascade — if parent unclear, query the delegated regulation (Phase 5)
Step 0.7 — Fabricated-secondary-reference detector (Sprint 9)
Step 1 — Live ESMA / regulator MCP check (Phase 1)
Step 2 — Absolute-language regex + semantic similarity (Sprint 4–8)
Step 3 — Continuous nightly self-hardening on two axes (Sprint 6/7 + Sprint 10)

All ingestion comes directly from publications.europa.eu/resource/celex/{CELEX_ID}. Every receipt links back to the cellar URL of the cited article. You don't have to trust UVO — verify the citation chain yourself.