THE HOUSE, AUDITED

HOW THE HOUSE DEALS

Before you play, the house commits to a secret server seed by publishing its SHA-256 hash. Every card is then derived from HMAC-SHA256(serverSeed, clientSeed:nonce:round) — bytes become floats (4 bytes each), floats become cards. Blackjack draws from an infinite deck via floor(float × 52); video poker Fisher-Yates-shuffles one 52-card deck with 51 floats. When a seed is retired, the house reveals it — and this page lets you replay every hand yourself, on your own machine, with nothing but WebCrypto. If a single card differs from what you were dealt, the house cheated. It can't.

1 · COMMIT CHECK — did the hash match the seed?

2 · REPLAY THE CARDS

3 · PASTE A HISTORY ROW

The FAIR panel in the app keeps your recent hands. Paste one row's JSON here and this page fills everything in, replays it, and compares against the cards you were actually dealt.