Provably fair Seeds you can check
Every result can be checked by you.
Each round is locked in before you play and revealed after it ends, so you can prove for yourself that nobody changed the outcome.
How it works
- Step 1
Locked before you play
Before the round starts we pick a secret server seed and show you its SHA-256 hash. The hash locks the result in, and we cannot change it later.
- Step 2
Result comes from the seeds
The result is calculated from the server seed, the client seed and the round number (nonce). Nobody picks it by hand.
- Step 3
Revealed after the round
When the round ends, the server seed is revealed. Hash it yourself: if it matches the hash you saw before, the result was never changed.
Verify by game
Open a finished round and use its Verify / Fairness button to see that round’s seeds.
Color Dice DuelsEvery roll of every die comes from the seeds. Open a finished duel and press Verify to replay all rolls.CoinflipThe winning side comes from the committed seed. Open a finished flip to check it.UpgraderYour ticket is calculated from the seeds and compared to the chance shown before you rolled.MinesThe whole board is made from the seeds before your first click. Check where every mine was after the game.BlackjackThe 6-deck shoe is shuffled from the seeds after everyone bets. Open the round’s Provably fair button to check the seed.
Check it yourself
Any SHA-256 / HMAC tool works. Use the server seed, client seed and nonce shown on the finished round.
Seed check (every game): sha256(serverSeed) == serverSeedHash Result: Upgrader hmac_sha256(serverSeed, clientSeed + ":" + nonce) Dice / Mines hmac_sha256(serverSeed, clientSeed + ":" + nonce + ":" + index) Blackjack shoe Fisher-Yates, j = hmac_sha256(serverSeed, clientSeeds + ":" + nonce + ":" + i) mod (i + 1)