Provably Fair Spin Wheel
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Tap spin to see it in action.
Most tip wheels ask fans to simply trust that the odds are real. A provably fair spin wheel removes the trust requirement entirely with a technique called commit-reveal: before any spin happens, the wheel publishes a cryptographic hash of the value that will decide the outcome. Nobody, including the creator, can change that value afterward without the published hash no longer matching.
After the spin, the original value is revealed. Anyone can then recompute the same hash from it and confirm it matches what was published before the spin ever happened — and recompute the exact outcome to confirm it wasn't altered. That's what makes it provable rather than just labeled fair: fans aren't asked to trust a claim, they can check it themselves on our public verification page.
For fans already wary of rigged-feeling wheels, this single detail is often what tips a spin from 'maybe' to 'yes' — and it's the same fairness engine running under Wheelo's creator studio for real tip-to-spin sessions, not a separate, lesser demo.
Frequently asked questions
What does "provably fair" actually mean here?
It means the server commits to a secret value by publishing its hash before any spin, then reveals that value afterward so anyone can recompute and confirm the outcome was never altered — verifiable math, not a promise.
Where can I actually check a spin was fair?
Our public verifier lets anyone paste the published hash, the revealed seed, and the outcome to confirm they match — see /verifier-spin once a specific spin has been revealed.
Does this mean fans can see the odds too?
Provable fairness and visible odds are two different things — this page proves the draw wasn't manipulated. Showing exact odds is a separate, optional choice a creator can also make.
Is this only relevant for real-money tip wheels?
It matters most wherever trust is on the line — tip-to-spin creator wheels being the clearest case, but the same verification works for any wheel built on this engine.