🧠 How It Works: Before you flip the coin, the server generates a secret random value, called the server seed. However, instead of revealing it right away, the server only gives you a SHA-256 hash of that seed. This hash acts like a sealed envelope — it proves that the server has locked in its value but hasn’t revealed it yet. To play: - You get the hash of the server seed (e.g., sha256(server_seed)). - You then initiate the coin flip using this hash as the reference. - After the flip, the server reveals the actual server seed. - You can verify the fairness by hashing the revealed seed yourself and comparing it to the original hash. If it matches, the server didn’t cheat. 🔐 Fairness Guarantee: - The coin flip result is typically computed using a combination of: - The server seed - A client seed (optional: provided by you or generated in-browser) For example, the result may be based on: HMAC-SHA256(server_seed, player_seed), and a subset of the output determines if it’s Heads or Tails. Because you have the hash before playing and the seed after, you can independently verify every flip. No rigging, no manipulation — just provably fair gameplay.

Coin Flip

Provably fair coin flip

Provably fair coin flip