Verify a provably fair result in 30 seconds

"Provably fair" is a real cryptographic property, not a marketing label. Every round is determined by three values the operator commits to before play: the server seed (hashed and published in advance), your client seed (which you can rotate), and a nonce (which increments per bet).

The general procedure

1. Before a session, note your client seed and the hashed server seed from the casino's fairness panel.
2. Play as normal. Each bet's nonce increments.
3. When you rotate the server seed, the casino reveals the plaintext seed.
4. Hash the plaintext seed and verify it matches the original hash. If it does, the casino committed to this seed before you played.
5. Feed server seed + client seed + nonce into the casino's published verifier (or the open-source one on GitHub). It should reproduce each result.

Per-casino links

• Stake, Shuffle, BC.Game, Thrill, Cloudbet: built-in Verify tool on Originals. Input your three values, the tool reproduces the outcome.
• Roobet, Duelbits, Gamdom, Wild.io, 1xBet: provably fair documentation with reference implementations; verification happens off-platform.

Thirty seconds. Less than one spin worth of time. Worth doing once per session, just to prove the machinery works.

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