Provably fair isn't a slogan here — it's three concrete steps that happen on every single round, and you can check each one yourself.
Step 1 — Commit before the sale closes
Before the first ball is called, the server publishes a commitment: a SHA-256 hash of the shuffle seed. You can see this hash live in the round. Once it's published, the shuffle is locked — nobody can change it afterward.
Step 2 — Seed reveal at settle
The moment the round settles, the real seed behind that hash is revealed. Nothing about the shuffle was decided after the commitment — the reveal simply shows the math that was fixed from the start.
Step 3 — Verify it yourself
Take the round ID (from your game history, or a "verify →" link on the Winners page) to the fairness verifier, and recompute the hash. If it matches the commitment that was published before play started, the round is proven fair — no trust required, because you did the math yourself.
Why this matters
Because the commitment is published before any card is sold, it's impossible for the shuffle to be adjusted based on who bought which card, or how many cards were sold. Every round follows the same three steps, every time.