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Are the games provably fair on Blackjack.fun?

Fair Play You Can Verify Yourself

Updated over a week ago

Yes, the games on Blackjack.fun are provably fair, allowing players to independently verify the fairness and integrity of each game outcome using cryptographic methods.

What Does “Provably Fair” Mean?

“Provably Fair” is a technology-driven approach that uses cryptographic algorithms to ensure that the results of a game are completely random and cannot be manipulated—not by the player, the casino, or any third party. This transparency builds trust between the platform and its users, especially in the crypto gaming space.

How It Works

Each provably fair game uses a combination of:

  • Server Seed – generated by the casino and kept hidden until after the game.

  • Client Seed – generated by your browser or device.

  • Nonce – a number that increments with each bet or round.

These values work together to determine the outcome of a game. After the round, you can view the server seed and verify that the result was calculated fairly using publicly available hashing algorithms (such as SHA-256).

Why It Matters

  • Transparency: You don’t have to “trust the system”—you can verify it.

  • Security: Outcomes are based on cryptographic randomness, not bias or manipulation.

  • Accountability: If you ever question a result, you can check it yourself.

Which Games Are Provably Fair?

All in-house games developed by Blackjack.fun use provably fair technology. This includes games like:

  • Blackjack

  • Crash99

  • Limbo99

  • Dice99

  • Plinko99

  • Mines99

  • Red & Black

  • All Blackjack.fun Originals

Third-party games (e.g., slots or live casino titles from external providers) are not provably fair in the same way but are licensed, regulated, and tested for fairness by independent auditing bodies.


At Blackjack.fun, fairness is not just a promise—it’s something you can prove. We're committed to maintaining transparency and trust by giving players the tools to verify every outcome.

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