How provably-fair works on fairit.xyz

Every giveaway, Plinko drop, and game outcome on fairit.xyz is provably fair: you don't have to trust us, you can mathematically verify it yourself.

1. Commit. Before anything runs, the server publishes a SHA-256 hash of a secret serverSeed. It can't change the seed afterward without breaking the hash.
2. Decide. Each outcome is computed as HMAC-SHA256(serverSeed, a public string like the round and nonce), turned into a number, and reduced to pick the winner, drop path, or eliminated player.
3. Reveal. When the round ends, the serverSeed is revealed. The published hash proves it's the same seed that was committed up front.
4. Verify. Anyone can recompute every outcome from the revealed seed, in their own browser, and confirm it matches what happened — no trust required.