Yes. Mines and the other instant games on Fish & Chips (Plinko, Limbo, Spin Wheel and Video Poker) use the same provably fair scheme. You don't have to trust us: you can re-compute every result yourself.
TL;DR: before you bet, the server shows sha256(serverSeed). Each result comes from HMAC-SHA256(serverSeed, clientSeed:nonce:cursor). When you rotate the seed, the old server seed is revealed so you can verify every past round.
The three ingredients
- Server seed: a secret random value. Only its SHA-256 hash is shown before play, so it can't be changed later without the hash failing to match.
- Client seed: a value you can set yourself, so the server can't pick a seed that's tuned against you.
- Nonce: a counter that goes up by one with each bet, so every round gets fresh randomness.
From seed to result
The server computes HMAC_SHA256(serverSeed, clientSeed + ":" + nonce + ":" + cursor) and reads it as a stream of bytes. Every four bytes become a number between 0 and 1. Mines uses these numbers to shuffle the 25 tiles and place the mines, Plinko uses one per row to go left or right, Limbo turns one into a multiplier, Spin Wheel picks a segment, and Video Poker shuffles the deck.
How to verify
- Note the server seed hash shown in the game's fairness panel.
- Play some rounds.
- Press Rotate seed. The old server seed is revealed.
- Hash it with SHA-256 and check that it matches the hash you noted.
- Re-run the HMAC with your client seed and each nonce to reproduce each result.
What fairness does not change
The instant games pay 97% in the long run (Plinko 96.6–97%, Video Poker 96.9% with perfect play). Bets are 0.1–5 USDT and a single bet pays at most 20 USDT. Provable fairness shows the game is honest, not that it can be beaten.
Related: How to play Mines · Provably fair Aviator explained
18+ only. Please play responsibly.
Frequently asked questions
What does provably fair mean?
The result is fixed by data the casino commits to before you bet, so you can re-compute it afterwards and confirm nothing was changed.
Does provably fair mean I will win?
No. It proves results were not tampered with. The games still carry a house edge (97% RTP on the instant games).
How do I check an old round?
Rotate your seed in the fairness panel. That reveals the previous server seed, which you can hash to match the commitment and then use to re-derive every result made with it.