Provably Fair, Explained Without the Crypto Jargon
September 30, 2026 · 5 min read · Engineering

When you enter a sweepstakes, you're trusting the operator. We don't think you should have to.
The problem with "trust us"
Traditional sweepstakes pick winners behind closed doors. You're told a name and asked to believe it was random. That's fine — until it isn't.
The provably fair approach
When a Jackpot draw opens, we generate a secret random seed and publish a SHA-256 hash of it together with the draw's ID. The hash is a fingerprint: we can't change the seed later without changing the fingerprint, and you can't work backwards from the fingerprint to the seed.
When the draw closes, the winning ticket is computed from that same hash: its first 8 hex characters, read as a number, modulo the number of tickets in the draw, plus one. Then we reveal the seed.
How you verify
Hash the revealed seed followed by the draw ID. If it matches the fingerprint we published when the draw opened, the seed was never changed — and working out the winning ticket from it gives the same number we announced. The Provably Fair page walks through it step by step.
What it doesn't cover
Only the Jackpot involves chance. Grinders places are decided by points, and a Slow & Steady balance is simply what you earned, so neither uses a seed at all. Their guarantee is different: every point sits in an append-only record — reversals are added as new entries, never edits — so any ranking or balance can be recalculated and will always come out the same.
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