# What is provably fair in online casino games?

> Provably fair is a cryptographic method letting players verify a casino game's result wasn't manipulated. How it works, by CROCO Games.

Canonical: https://crocogames.com/glossary/provably-fair

Markdown mirror of https://crocogames.com/glossary/provably-fair — CROCO Games (crocogames.com), a B2B slot provider for online casino operators. Machine-readable site index: https://crocogames.com/llms.txt

Provably fair is a cryptographic method that lets a player independently verify that a game round's outcome was determined before they bet and was not altered afterward. It typically combines a server seed, a client seed, and a nonce, with hashes published so results can be checked after the fact.

The mechanism is most associated with crash and instant games. Before a round, the operator commits to a hashed server seed; after the round, the seed is revealed so players can confirm the result matches the original commitment. This removes the need to simply trust the operator.

Provably fair is a transparency model, not a regulatory certification — it complements, rather than replaces, independent RNG testing and licensing.

## CROCO Games & Provably fair

CROCO Games applies provably fair communication to its crash content (flagship: Avix), giving operators and players a verifiable fairness story.

## Frequently asked

### Is provably fair the same as RNG certification?

No. Provably fair lets players verify individual rounds cryptographically; RNG certification is independent lab testing of the randomness engine. Strong games use both.

### Which CROCO games are provably fair?

CROCO's crash titles, including Avix, use a provably fair model so each round can be independently verified.