Provably Fair CheckerHMAC-SHA256

Yeet Provably Fair Verifier

Yeet ships its provably-fair generator as open source, and that published code confirms it uses the same HMAC-SHA256 scheme as Stake. Yeet's house games - Dice, Mines, Limbo and Coin Flip - are each fixed by a committed server seed, your client seed and the nonce, and reproduce exactly in the verifier above.

4 games at Yeet

Seed pair

Client seed

Server seed (unhashed)

Nonce

Runs entirely in your browser - your seeds never leave this device.

Roll Result

00.00

0255075100

Provably fair verification lets anyone independently recompute a game's result from its server seed, client seed and nonce - confirming the casino could not have altered the outcome after the bet. Browse all casinos & games

How Yeet provably fair works

Yeet's own hmac-random-generator implementation hashes with HMAC-SHA256, using the server seed as the key and clientSeed:nonce:round as the message - we cross-checked our engine against that published source byte-for-byte.

Each HMAC produces 32 bytes that are read four at a time into floats between 0 and 1 (b0/256 + b1/256^2 + b2/256^3 + b3/256^4). Yeet maps those floats to outcomes: a single value for Dice, Limbo and Coin Flip, and a seeded shuffle for Mines.

Yeet commits to the server-seed hash before you play, so a result can't be changed after the fact. Rotate your seed pair to reveal the server seed and confirm any past bet here.

Yeet's provably-fair games

Yeet runs a focused set of four provably-fair house games - Dice, Mines, Limbo and Coin Flip - all driven by the open-source HMAC-SHA256 generator the verifier above mirrors.

How to verify a Yeet result

1Open Fairness or Provably Fair in your Yeet account settings.
2Rotate your server seed to reveal the previous seed in unhashed form.
3Grab the revealed server seed, your client seed and the bet nonce.
4Enter them above, pick the Yeet game, and check the result against your history.

Yeet provably fair FAQ

Is Yeet's provably-fair code open source?⌄

Yes. Yeet publishes its HMAC random generator, and we verified our implementation reproduces its output exactly - server seed as key, clientSeed:nonce:round as message, floats built four bytes at a time.

What games does Yeet offer?⌄

Yeet's provably-fair lineup is compact - Dice, Mines, Limbo and Coin Flip - each generated from the same seed-driven HMAC-SHA256 engine.

Is Yeet provably fair?⌄

Yes. The server seed is committed before you bet and revealed on rotation, and because Yeet's generator matches the published Stake-style scheme, every result is independently verifiable here.

How do I verify a Yeet bet?⌄

Rotate your seeds in Yeet to reveal the old server seed, then paste it with your client seed and the nonce above. A matching result proves the round was fair.