Could you elaborate on this statement please? Why it's so important to do that?
Do you think the house program will detect you are always using the same seed and will create a losing server seed for it or it has nothing to do with that? Thank you very much to explain me what you mean (or someone else here).

Great guide for those who are inexperienced with provably fair systems! I agree that they can be pretty complex to understand and it's a hassle to check every bet to see if it's legit, but someone's gotta do it in order to catch any inconsistencies in casinos as there's always a chance that they could be rigging just a select number of bets, not just with newer sites but more established ones as well. The cross-platform checking was something I wasn't aware existed, because I actually didn't know some sites shared these scripts. Is there anything major to look for that suggests two sites have the same provably fair scripts?

ineed its a hassel to check often  but it would only be beneficial to some that bet a few big bets and you could be right , what if some of the bets are rigged and they wont notice it because they are busy with our play  but once they catch it and verify that is fake  , that would be a big issue to them  as it can scratch their crediility  especially if they are already established .  and yes also , alot of sites have the same scripts  ,   this can be seen obviously  . there are some that are owned by the same owner  but i dont think its possible to cross verify especially if games are different  

Yes, house can detect the client seed. This is how the house can detect your client seed:

Bet 1: I used 'myFavSeed' as my client seed. After the bet, I clicked 'new seed' and site changed server seed plus generated new client seed for me, say 'dgbeigeinwo35353'.

Bet 2: But since I love my client seed, I again changed client seed to 'myFavSeed' and played the bet. After second bet, I once again generated new seeds to verify my second bet.

Everything will go well up till here. Since server seed is generated prior to client seed, house have no way to cheat you. But here comes the catch. Suppose house is maintaining the record of every client seed that you verified like this:

User.verifiedClientSeeds = ['myFavSeed', 'myFavSeed'];

Now house can check if client seed used in first bet is same as the second, if true then house will use 'myFavSeed' as dummy client seed and generate a server seed for a specific result. This server seed's hash will be shown to you for third bet.

If you once again choose 'myFavSeed' as your client seed, the result will be same as what house decided before game. However, in games like dice this may not be very advantageous for house. House may fix that the result will be 92.68 but still have no control over Roll over/Roll under which user may choose arbitrarily. But this thing can be disastrous in case of auto bet or if house even maintains the record of your betting habits. For example, if I picked roll over 50.5 four times whereas picked roll under 49.5 eleven times. Then house can draw a trend that I like to pick roll under 49.5 so it will present me server seed such that result generated with that server seed and myFavSeed as client seed will be above 49.5.

It is a helpful thread of yours and deserves to be on the top of this board, it will definitely help those who did not understand very well how to verify the provably fair system in an online gambling platform. Technically, this is really good at checking a gambling platform that the legit one, most probably those who are a newly launched gambling site. Until now I am trying to understand very well the content of your post because there some lines I did not familiar with.

A lot of people actually think like you and make bets but let me clarify how casinos can manipulate rolls without even being caught ever.

1- You determine the client seed.
2- Server seed is always in the control of the casino and rightly so.

Now if you are not changing or checking client seed every bet then the casino can provide a server seed that will be against your bet for example you are doing all bets higher than 49.5 and the casino notices it, they see that the client seed hasn't been changed and they can easily give a server seed that would generate result lower than 49.5 always.
I am not a technical person but really understood it much better after the explanation by webtricks so thank you again!

I agree that the information provided by OP is indeed quite nice and easy to understand for someone who isn't into encrypting and private keys field.

Personally, I know how to verify bets and I sometimes do when I bet big but most of the times when I am betting I do that at reputed sites and the thought that comes to my mind is "The casino will not turn scam for my 0.02 bitcoins" and hence I never care enough to verify my bets. But I really feel that people should change client seed time to time because if the client seed is random it can be seen by the system, no? So better we put new client seed every bet we make.

For once please read the excellent post made by OP and I sincerely appreciate the efforts made there.

The talk going on is not about betting strategy but it is about whether a gambler is aware of how provably fair works and if they are aware then do they actually verify the bets and randomize the client seeds to make sure the bet result is actually random?

I feel like no one would be verifying each bet and the question raised is genuine because the gambling website can easily manipulate the results if you do not change client seed because they generate the server seed and if you don't change client seed that gives them full control over result.

great idea. It's better to check games results using a private tool which is not dependent on the casino.
I found this website and thought it would help you:
https://dicesites.com/
You can improve it and add more casinos.
Took it from here: https://bt.irlbtc.com/view/5150219.0