Stake.us Flip Verifier

Recompute all 20 coins for one bet on Stake.us from the server seed, client seed and nonce. Same HMAC-SHA256 stream the operator publishes, run in your browser.

Verify one betAnalyze a range

Casino

Game

Have a bet link? paste it; we open the right casino and game and tell you where the seeds are. Nothing is sent anywhere.

Examples

Verification Inputs

Server Seed unhashed, revealed after you rotate

Client Seed your chosen seed

Nonce bet counter, starts at 0

Server Seed Hash optional, the SHA-256 shown before you bet

Coins flipped 1 to 20, the rest are shown dimmed

Recomputes as you type. Nothing leaves your browser.

Flip Result

Paste the server seed and client seed from the bet. The flip result appears here as you type.

Algorithm sourceStake.us, Provably Fair: Game Events (identical scheme to Stake.com)checked 2026-08-17

The byteGenerator, float conversion and every per-game event mapping were confirmed identical to Stake.com (14 of 14 claims, research/platform/tools/tool-finesse-audit/STAKE_COM_VS_US_2026-08-17.md). Roulette is not in that confirmation set, so it has no Stake.us route yet.

Stake.us fairness page Stake.us on GAMB·8

How Stake.us derives a Flip result

From float to result

Twenty floats are generated, one per coin. A float less than or equal to 0.5 is tails, anything above 0.5 is heads. Your bet uses the first however many coins you chose to flip.

What to compare

The sequence below should match the coins shown in your bet history, in order.

Where the seeds are

Open the bet in your history on Stake.us. The client seed and nonce show immediately. The unhashed server seed appears only after you rotate your seed pair, so rotate first, then verify every bet from the old pair.

The byte stream, Stake.us

bytes = HMAC_SHA256(key = serverSeed, msg = clientSeed:nonce:round) // round starts at 0float = b0/256 + b1/256^2 + b2/256^3 + b3/256^4 // 4 bytes per floatresult = game event mapping applied to the floats, in order

Other Stake.us games

Stake.us Dice verifier Stake.us Limbo verifier Stake.us Crash verifier Stake.us Mines verifier Stake.us Plinko verifier Stake.us Hilo verifier Stake.us Keno verifier Stake.us Dragon Tower verifier Stake.us Wheel verifier Stake.us Diamonds verifier Stake Flip verifier Shuffle verifier Winna verifier

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Frequently Asked Questions

Why 20 coins when I only flipped 3?

The operator generates the full sequence at bet time so that continuing to flip cannot change earlier coins. Your bet reads the first three.

Which side is exactly 0.5?

Tails. The published rule is less than or equal to 0.5 is tails.

Which Stake.us algorithm does this use?

Stake.us, Provably Fair: Game Events (identical scheme to Stake.com), read 2026-08-17. The byte stream is HMAC-SHA256 of clientSeed:nonce:round keyed by the server seed, converted to 4-byte floats, then mapped to all 20 coins.

Do my seeds leave the browser?

No. The HMAC and SHA-256 run with the Web Crypto API on your device. The share link carries the seeds only because you copied it.