Category: Provably Fair
Provably fair, in one paragraph
Provably fair is a cryptographic method that lets you check a game was not rigged. Before the bet, the casino commits to a hashed server seed; you contribute a client seed, and a nonce counts each round. After the bet, the server seed is revealed and you can verify that the outcome was fixed in advance and not altered once you had wagered. That is the whole idea — trust math, not the operator's word. For the full step-by-step walkthrough, including how to run the check yourself, see our explainer, Provably Fair, explained, and the short definition in our glossary. This page is just the map.
Which games are provably fair — and which aren't
Provable fairness applies to the crypto-native Originals: dice, crash, plinko, limbo, mines, hi-lo, wheel and keno. It does not apply to everything in a crypto casino. Third-party RNG slots are not player-verifiable — they are lab-certified for fairness by independent testing houses instead. Live-dealer games are not provably fair either: a physical wheel or a real deck cannot be seed-verified, so they rely on studio auditing and the operator's licence. Our full games hub, provably-fair casino games, breaks down each of the Originals in detail.
What it does — and does not — prove
This is the part worth being clear-eyed about. Provable fairness proves one specific thing: that the deal was not tampered with between your bet and the result. That is genuinely valuable. But it does not make the house edge disappear — a provably-fair dice game still has a built-in margin, and "provably fair" is not a synonym for "good odds." It also says nothing about whether the operator is solvent or will actually pay you: a game can be perfectly verifiable while the casino behind it stalls your withdrawal. Verifiability is a fairness check on the game, not a guarantee about the business.
How it feeds the Jackpot Score
A genuine, working provably-fair suite is a real signal, so it feeds two parts of our scorecard: Support crypto (does the operator lean into verifiable, crypto-native games?) and Sélection de jeux (the breadth and quality of what is on offer). Crucially, we do not take the label at face value — we check that the verification actually works as described, because a "provably fair" badge with no working verifier counts for nothing. See how the weighting works on our review methodology page.
Go deeper
Use this page as a jumping-off point. For the mechanics, start with Provably Fair, explained; to browse the verifiable games, use the provably-fair games hub; for a one-line definition, see the glossary entry. Whichever game you play, the maths still favours the house — provable fairness makes the deal honest, not the bet profitable. You must be 18 or older, and if it stops being fun, free and confidential help is on our Jeu responsable hub.