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Provably fair means BC.Game commits to each result before you bet by showing a hashed server seed. Your client seed and a nonce (bet number) are combined with it to create the result. After you change seeds, the real server seed is revealed and you can recalculate every past result to prove nothing was changed. It works on BC Originals like Crash, Dice, Plinko, Limbo and Mines, not on third party slots.
How provably fair works in simple words
| Part | Who sets it | What it does |
|---|---|---|
| Server seed | BC.Game | Secret random value. You see only its hash before playing |
| Client seed | You | Your own value, so BC.Game cannot pick the outcome alone |
| Nonce | Counts up | Makes each bet with the same seeds different |
| Hash | Math | Proves the server seed was fixed before your bet |
Because BC.Game publishes the hash first, changing the server seed later would produce a different hash, and anyone could see it.
How to verify a BC.Game result
- Open the game’s Fairness panel In Dice, Plinko, Mines or Limbo look for the Fairness or shield icon.Fairness button in a BC Original game
- Set your own client seed Type any random text. Doing this before you play is the whole point.
- Play some rounds Note the bet IDs you want to check.
- Rotate the seed Press “Change seed”. BC.Game now reveals the old server seed.
- Check the hash Hash the revealed server seed with SHA-256 and compare it to the hash you saw before playing. They must match.
- Recalculate the result Paste server seed, client seed and nonce into BC.Game’s verifier or an independent open source verifier. The result must match your bet history.
Crash works a little differently because everyone shares one round. Its results come from a long pre-generated hash chain, and each round’s hash can be checked against the next one in the chain.
What provably fair does not mean
- It does not remove the house edge. Games are fair and still pay slightly less than true odds.
- It does not cover slots and live casino from outside studios. Those rely on the provider’s own testing and licensing.
- It cannot be “hacked” with predictor apps. Anyone selling one is selling a scam.
Provably fair FAQ
Is BC.Game provably fair?
Yes for BC Originals such as Crash, Dice, Plinko, Limbo, Mines and others. You can verify each result after rotating your seed.
Should I change my client seed?
Yes. Setting your own client seed and rotating it from time to time is how you make sure the result depends on you as well as the casino.
Can provably fair help me win?
No. It proves results were not changed. It does not tell you what will happen next.
Thomas has used BC.Game and other crypto casinos since 2021 and tests every deposit, bonus and withdrawal step himself before writing about it.