Cross-venue consensus PoC
One probability, multiple venues, visible tolerances.
This proof page is a bounded public test for venue-neutral probability review: normalize the same underlying question across venues, read each venue's top-of-book probability, and publish the match basis, spread weighting, dispersion, caveats, and row hash before calling anything a signal.
Retention status (registry, added 2026-08-13): the published quantities are computed live per request from rolling tables with hard query limits, and the page publishes per-row hashes without a dated artifact carrying the hashed rows - so a reader cannot be shown the group set any earlier render displayed. The matching logic is tracked in git; the readings are not.
Experimental rating caveat
Market Trust Cards are experimental market-quality diagnostics, not compliance certifications or validated credit ratings.
Current proof output
No two-venue consensus group is publishable yet
The route is live and reading the productionvenue_marketsandvenue_market_price_snapshotsledgers. It intentionally refuses to publish a consensus until at least two venues share an explicitcross_venue_keyor a conservative normalized question key.
Publication scope is currently Polymarket only. A second licensed venue is required before this page can render a spread-weighted cross-venue consensus and hash.