Stake Mines Verifier
Verify mine placements on the 5×5 grid via the Fisher-Yates draw and get the exact payout for your safe reveals.
loading verifier…
How Mines works. How to verify it.
Enter the number of mines and the tiles you revealed (1–25, left-to-right, top-to-bottom) to see whether the round was a win and what it paid.
The byte stream behind every Original
Stake derives outcomes from HMAC-SHA256(key = server seed, message = clientSeed:nonce:round). Each round yields 32 bytes; a float is four bytes read as b₀/256 + b₁/256² + b₂/256³ + b₃/256⁴. Mines reads as many floats as it needs, in order. The server seed is committed by hash before you set a client seed, so neither side can steer a result — read more on how seeds work.
Frequently asked
How is a Stake Mines result generated?
24 floats draw tiles without replacement from 0–24; the first M drawn are the mines. P(k safe reveals) = C(25−M, k) / C(25, k); payout = round(99 × C(25,k) / C(25−M,k)) / 100.
What do I enter to verify a Mines bet?
The revealed server seed, your client seed, the bet's nonce, and the options you played with. Enter the number of mines and the tiles you revealed (1–25, left-to-right, top-to-bottom) to see whether the round was a win and what it paid.
Where do I find the server seed, client seed and nonce?
On Stake: Fairness (the shield icon) → Seeds. The active server seed is only shown as a hash; rotate the pair and the previous server seed is revealed in plain text. The client seed is yours (Stake generates one or you type it). The nonce is the bet number within that seed pair — every bet's detail popup shows it.
Does anything I paste leave my browser?
No. The HMAC-SHA256 is computed by your browser's WebCrypto API; this page makes no network requests with your seeds and has no analytics on the inputs.
Can this predict the next roll?
No — and nothing can. The next roll needs the unhashed server seed, which Stake only reveals after you rotate away from it. Anyone selling a predictor for Stake is running a scam. What you can do is verify every past roll, which is what this tool is for.
What if the result doesn't match Stake?
Check the three inputs first: the revealed (unhashed) server seed, the exact client seed active at the time, and the right nonce. If they are right and it still doesn't match, you have a reproducible discrepancy — keep the bet ID and seeds and raise it with Stake support.
Other games
The DiceStrats extension runs creator strategies on your own Stake account, with take-profit and stop-loss armed by default and a ⚙ Seeds panel that rotates to a client seed you choose. Free with promo code DICESTRATS.