Editorial policy

The lab rules

Rule	What it means in practice
Answer first	The first two sentences of a guide answer the question in the title.
Real computations	Every hash, HMAC and derived number on the site is produced by running the code, then pasted — never typed by hand.
Re-run before publishing	A script recomputes every example and the browser verifier is checked against Python output.
Label examples	Seeds and example games are made up for explanation and labelled as such.
Say what a proof doesn't show	Each guide is clear about the limits of a fairness proof, not just its strengths.
No rankings	We don't rate, rank or recommend operators.
No profit claims	We never present gambling as a way to make money.

Methods differ

Provably fair schemes are not one standard. Where we show a method, we say it's one common convention and tell you to compare it with the documentation of the game you're checking.

Corrections

If you find an error, email support@provablyfairsites.com. We fix confirmed errors promptly and add an "Updated" date to the guide.

Commercial influence

Commercial relationships, if any, are described on our disclosure page and have no say over what a guide concludes.