Fair Game

Every round is decided before you see it, and you can prove it. Open a finished round of your own, reveal the server seed it was played on, and this page recomputes the result in your browser — nothing is taken on our word.

1. Before the round the server publishes the hash of its secret seed — the commit. It cannot swap the seed afterwards without breaking the hash.
2. The result is HMAC-SHA256 over your client seed and the round number, cut to the range of the draw.
3. Reveal the seed and the whole series becomes checkable: the rounds you already played, recomputed here, on your machine.