how do you know if a provably fair game is actually fair?

so these provably fair games throw out all this talk about cryptography and seeds, like it’s just “check the hash and you’re good.” i get the basics, where you can see the seed before and after a spin, but does anyone actually know if the whole system isn’t rigged in a way we can’t see? i mean, half the time i feel like i’m just trusting whatever script they give us and calling it transparency. only takes one bad actor to code a backdoor or force certain outcomes, right?

most of my play is slots and some poker hands here and there, so the variance is crazy anyway. still, when you get smoked ten spins in a row, you can’t help but get paranoid. there’s probably some super mathy people out there who dig into the code but i’m not one of them. i just want to know how deep people actually check before trusting a game’s fair and not just going with the crowd on this stuff.