Verify a Gamdom bet
9 Gamdom originals can be recomputed here from their fairness details, following Gamdom's own published algorithm. Gamdom publishes no worked examples, so all of them are checked against Gamdom's own verifier code. Everything runs in your browser.
Seed pair6 games, from server seed, client seed and nonce
Seed pair
| Game | Inputs | Vectors | Algorithm source |
|---|---|---|---|
| Dice → | server seed, client seed, nonce + hashed server seed | casino's own code | codesandbox.io |
| Limbo → | server seed, client seed, nonce + hashed server seed | casino's own code | codesandbox.io |
| Plinko → | server seed, client seed, nonce + hashed server seed, rows, risk | casino's own code | codesandbox.io |
| Mines → | server seed, client seed, nonce + hashed server seed, mines | casino's own code | codesandbox.io |
| Keno → | server seed, client seed, nonce + hashed server seed | casino's own code | codesandbox.io |
| Pocket Dice → | server seed, client seed, nonce + hashed server seed, risk rolls to list | casino's own code | codesandbox.io |
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 chain3 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 | casino's own code | codesandbox.io |
| Roulette → | game hash + salt, previous rounds to list | casino's own code | codesandbox.io |
| Hilo → | game hash + salt, previous rounds to list | casino's own code | codesandbox.io |
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.