The chain that matters
How fairness actually flows: studio → lab → operator → player
The casino lobby is the last link in the fairness chain, not the first. Game studios build the RNG that decides every spin. Independent test labs evaluate the RNG, sign off on the RTP simulation, and issue a certificate against a specific game build. The operator licenses that certified build, deploys it in the lobby, and surfaces the provider name and RTP in the game info screen.
That means: a "Royal Reels uses certified RNGs" line in the operator footer is a starting point, not the proof. The load-bearing fairness signal sits on the studio's certificate register and on the game info screen of the specific title you are about to play. Both are public; both are checkable in two minutes.