Provably Fair Verifier — Verify Game Outcomes | Zykur

Provably fair technology lets you cryptographically verify that each game outcome was determined fairly and not manipulated by the casino.

How Provably Fair Works

1. Casino commits to server seed — Before a round, the casino generates a server seed and publishes its SHA256 hash. You can verify the hash matches the revealed seed after the round.
2. Client seed provided — You provide your own client seed (the default is randomly generated; you can change it).
3. Nonce increments — Each consecutive bet uses the same seeds with an incrementing nonce, so outcomes are unique per bet.
4. Outcome = hash(server seed + client seed + nonce) — The combination of both seeds plus the nonce determines the game outcome through a deterministic algorithm.
5. Verify after the round — After the server seed is revealed, you hash it yourself and confirm it matches the pre-game commitment.

Which Games Are Provably Fair?

• Dice — Most common; outcome is the roll number
• Crash — Crash point determined by server seed
• Mines — Mine positions determined before round starts
• Plinko — Ball path determined by seed
• Limbo, Hi-Lo, Wheel — All verifiable

Which Games Are NOT Provably Fair?

• Slots — RNG-certified but not player-verifiable
• Live dealer games — randomness from physical cards/wheel
• Video poker — RNG certified, not provably fair

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