# Fairness

Each block uses a server seed and client seed. Before the block resolves, we publish SHA-256(server seed) so the outcome can’t be changed without breaking that hash. When the block ends, we combine the seeds with HMAC-SHA256 to get a deterministic value, turn the first part of that into a number between 0 and 1, and use it to pick the winner.

Your odds match your stake: solo deploys get one wheel slice; pool deploys on the same team share one slice. Slices are ordered in a fixed way (by key, then amount), then the random number lands on a slice proportional to total lamports deployed.

After the block, the server seed is revealed. Anyone can plug the game ID, seeds, and bets into the verifier and confirm the winner matches what the wheel showed.


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