Bitcoin Forum

Before we may begin to understand what makes a casino provably fair, we need to study how the basis of online gambling works. Simply put, players bet on the outcome of randomly generated
numbers.

Formerly, these random numbers were generated solely by the host of a game, leaving complete control in the hands of operators. Participants had to trust the host not generating results in favor of anyone. Casinos operating on these merits caused conflict of interest for those seeking a fair gambling experience.

Due to lack of transparency, the essence of provably fair games was born. Corresponding concepts provide a way for both the operators and players to contribute to randomization, which in turn removes any possibility of deceit or cheating.

The foundation of fair gaming algorithms were laid by pseudorandom number generators, utilizing seeds which determine the outcome of wagers.

A seed shall be equally influenced by players and hosts, meaning that the result of each bet at a provably fair casino is a team effort. The house is no longer in complete control of randomization.

So, wouldn’t this mean that players are able to manipulate results in their own favor?

Commitment schemes to the rescue!

To prevent malicious behavior, hosts mustn’t show us their actual seed at first. Instead, they present a commitment of their own seed to us. Similarly to envelopes, commitments seal and conceal messages contained by them. They cannot be altered or revealed without consent from the sender. For example, hosts may commit a seed by using a one-way hash function or public key cryptography.

Hosts shall provide transparency and proof of authenticity by revealing their actual seeds at the end of each game. Anyone in possession of a host’s commitment may verify the immutability of the corresponding seed.

Bets shall be reproducible once the host seed gets revealed. Players can constantly audit the behavior of hosts by comparing random results calculated by a host and them.
Proving that the outcome of a wager is computed fairly and transparently should be performed by anyone at any time. We strongly believe in widespread use of provably fair algorithms throughout the gaming industry.

It'd be great if we could have a simpler representation of provably fair. It's something that's far more important than people are led on to believe.

Another awesome article. I actually went through a lot more of the stuff on that website and its well done. Is the foundation stagnate atm? Is anything happening?

That's a really good article. Even I didn't knew about provable fairness in this detail, and I'm sure many new players in BTC gambling ask this question everyday. So this would really help them.

with this article i got some interest now with provably fair unlike before that i just entrust my game with the site host and wait for my luck to hit me
up, many thanks for the informative topic which tackle the very basic of our gambling activity, knowing the real factors of fairness should be the first
that we look upon the house.

You hear the word "Provably fairness" a lot thrown around, but it's not really understood fully by everyone.

This article I found on the crypto gambling foundation by Kristof is really good at explaining it. I recommend anyone read it, even if you think you know!

https://cryptogambling.org/provably-fair/

Nice explanation. Now how do we get everybody to check their actual bets?

I'm sure hardly anybody ever checked if the outcome of their bet was fair unless they lost a major chunk at one point.

This is a nice explanation but it will not do you any good if you don't know how to manually check by yourself if a gambling website is really provably fair or not.

I've found an old article that will teach you how to check each of your bets to see if they were fair. He's checking a Blackjack game, but you can easily apply this to other games on different websites yourself.

http://www.provablyfairplay.com/blog/how-to-manually-verify-provably-fair-games.html

I had read all about this even before getting into online gambling on casinos. As a matter of fact, I always used to doubt the legitimacy of provably fair sites when I used to get continuous lose streaks and at that time, I used to verify all my bets just to see if they were actually pairing correctly with the seeds. So as far as Bitcoin gambling goes, it is a MUST to play only on sites with an integrated provably fair system for verifying bets.

Great article OP. I would still like to know though who evaluates whether the chances of each number showing up was actually fair. Like how do we know whether the chances of rolling 1 and rolling 99 the same chances? I wish there is a governing body that would totally be the one to evaluate whether the games are provably fair indeed. It's hard for normal players to really know whether a game is indeed provably fair.

Gambling is a very difficult thing to predict. very much to find a system that is really fair. I agree with what you say when we find a system that is comfortable in playing gambling then stay and never think to move. because if we move then we will only increase the risk of action that we decide.

Yeah, gambling is unpredictable thing, and same here to predict about fairness system of gambling. I think where we are comfort to play gambling then stay here in this point i agree with you, never to move, our movement it mean we are increase our risk and may be we never feel comfort in our movement. But in this article i got some useful points.     

You mean moving on other gambling site right? How come that it will increase the risk when we move on other Gambling while we are doing first research about the other Gambling site before we move. It is usual to try other site to change your mood and ambiance of gaming and It will not increase the risk unless you just pick random gambling site then deposit on it without doing a background search. I'm always changing gambling site whenever I lose so that my luck might change a bit.  ::)

When the site is called provably fair but no one can make sure that it is provably enough except they are expert or most people tell their experience for the site.
Provably fair are made by human and there will be a chance for human error so just considering this before make a real deposit

When the site is called provably fair but no one can make sure that it is provably enough except they are expert or most people tell their experience for the site.

Provably fair are made by human and there will be a chance for human error so just considering this before make a real deposit

It is called provably fair because everyone can make sure that result/outcome is fair and site won't cheat you.
Research provably fair gambling. There are no errors in it if you feel uncomfortable and if you think gambling site is somehow cheating and not giving you random seeds you can always change client seed and verify the result  ;)

Some people would be contented on doing such thing on just changing the seed but not actually knowing on what are the real purpose of those.This is infact a really story on most gamblers.Some are just joining others recommendations but not actually knowledgeable on what they are doing.Gambling site do have this kind of verification of bets is much better compared to those who havent.

Changing seeds will probably going to change the outcome if you already know the outcome. Some gambling sites like online casinos has offered this to every player by showing of what is really happening. But i think there were some kind of AI who can manipulate the results if they know your betting habit through cookies in your browser. It's more like a changelog that's recording your every move you make.

Always redirect to this article when trying to explain provably fair and why I choose to play dice games. People think I'm weird.

But I guess we are already lose to one gambling site before we can move to the next one. :D For me probably fair on different are still the same because most the dice site using same dice script in terms of determining the result of each bet. So I've realize that it is only a waste of time and money if transfer our funds to one gambling site to another since they have fairness offer.

I agree as long as the site is reputable, I think there is no risk of the fund being stolen by the site, I think the risk is still the same just the change of  site and owner :)  But as you said if we just go to random gambling site and play to non reputable sites then I would agree the risk of losing our money is greater since it is possible that the gameon that site is not provably fair.

When the site is called provably fair but no one can make sure that it is provably enough except they are expert or most people tell their experience for the site.
Provably fair are made by human and there will be a chance for human error so just considering this before make a real deposit

Well, it's true that programmers can make errors while programming a provably fair system, but in reality this would get discovered pretty fast.
It's really not that hard to check if the provably fair system is working correctly and people should stop perpetuating that ' it's too hard to check this yourself '.

Just pick a casino that has had its provably fair algorithm audited on this forum for example, there are threads for the big gambling sites.

You hear the word "Provably fairness" a lot thrown around, but it's not really understood fully by everyone.

This article I found on the crypto gambling foundation by Kristof is really good at explaining it. I recommend anyone read it, even if you think you know!

https://cryptogambling.org/provably-fair/