Verify a Shuffle bet
13 Shuffle originals can be recomputed here from their fairness details, following Shuffle's own published algorithm. All of them are checked against outputs Shuffle publishes. Everything runs in your browser.
Seed pair11 games, from server seed, client seed and nonce
Seed pair
| Game | Inputs | Vectors | Algorithm source |
|---|---|---|---|
| Dice → | server seed, client seed, nonce + hashed server seed | published output | help.shuffle.com |
| Limbo → | server seed, client seed, nonce + hashed server seed | published output | help.shuffle.com |
| Plinko → | server seed, client seed, nonce + hashed server seed, rows, risk | published output | help.shuffle.com |
| Mines → | server seed, client seed, nonce + hashed server seed, mines | published output | help.shuffle.com |
| Keno → | server seed, client seed, nonce + hashed server seed | published output | help.shuffle.com |
| Roulette → | server seed, client seed, nonce + hashed server seed | published output | help.shuffle.com |
| Wheel → | server seed, client seed, nonce + hashed server seed, segments | published output | help.shuffle.com |
| Hilo → | server seed, client seed, nonce + hashed server seed, cards to deal | published output | help.shuffle.com |
| Blackjack → | server seed, client seed, nonce + hashed server seed, cards to deal | published output | help.shuffle.com |
| Tower → | server seed, client seed, nonce + hashed server seed, difficulty | published output | help.shuffle.com |
| Coinflip → | server seed, client seed, nonce + hashed server seed, flips | published output | help.shuffle.com |
The casino shows you the hash of a secret server seed before you bet; you add your own client seed and a nonce that counts your bets. Once you rotate the pair, the server seed is revealed and every bet on it can be recomputed.
Hash chain2 games, from a round hash from a pre-committed chain
Hash chain
| Game | Inputs | Vectors | Algorithm source |
|---|---|---|---|
| Crash → | game hash + salt, previous rounds to list | published output | help.shuffle.com |
| Slide → | game hash + salt, previous rounds to list | published output | help.shuffle.com |
Every round comes from one long chain of hashes made before launch. The casino publishes the last link in advance; hashing a round backwards reaches it, and a salt chosen after the commitment (a Bitcoin or Ethereum block hash) turns each link into a result.