Provably fair games: what the term means and how to check it

Many crypto casino originals advertise 'provably fair' results. We explain the idea behind seeds and hashes without the jargon.

Illustration of a padlock over a stream of hashed characters

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Provably fair systems typically combine a server seed, a client seed and a counter to generate each result. The casino publishes a hash of its seed in advance, so it cannot change it without detection.

After play, you can reveal the seed and recompute results to confirm they match. This demonstrates that individual outcomes were not altered — it does not change the house edge.

Verification tools are usually found in the game's settings. Third-party verifiers exist, but use trusted sources.

18+ Gambling involves risk. Check local laws and only play with money you can afford to lose.