18+ only. Games that claim to be provably fair are still gambling with real money. Play safely

The Verification Lab

About us

Provably Fair Sites publishes documentation-style guides that explain provably fair systems and show you how to check them. The writing team signs as The Verification Lab.

Who we are

Provably Fair Sites is a small editorial project. Guides are written and checked by a team that publishes under the shared name The Verification Lab. We use a team name because every guide passes through more than one pair of hands: one person writes, and the hashes are recomputed by a script before anything is published.

What we do

We explain how "provably fair" works — commitments, server and client seeds, nonces, HMAC-SHA256 and hash chains — and show the exact computations so you can repeat them on any result you're given.

What we don't do

  • We don't name, rank or recommend operators.
  • We don't certify or audit any site, and nothing here is a seal of approval.
  • We don't promise profit or suggest gambling is a way to make money.
  • We don't use game publisher logos or claim any connection to a game.

How we're funded

See our disclosure. Some links may be referral links; that never changes what a guide says.

Contact

Corrections and questions: support@provablyfairsites.com.