Bitcoin Forum

I know this looks bad. I am a mod and I am trying to prove Primedice unfair, but its the truth. This was brought to our attention by a different user: Pupsimus on the main PD thread. I just wanted your input on this.

https://primedice.com/modals/bet.html?id=459292926 (https://primedice.com/modals/bet.html?id=459292926)

^ This bet is unfair. If you use this: http://bitcoinmaniac.com/verify/ (http://bitcoinmaniac.com/verify/) or their own code provided, you get 39.22 but Primedice says the roll is 67.53. This might just be a small mistake or it could be happening on a lot of rolls. Thankfully its only a tiny fraction of BTC, but what do you think?

Dont get me wrong, I still love PD and this is only a small mistake but just want your opinions on this.

Solved!

https://primedice.com/modals/bet.html?id=262100100

this is a bet from 2 month and 2 weeks, i tried 10 other bets from that period, and the verifier show the same roll.
But after this date, all bets that the verifier show is not the same as pd show.

Thats weird. I emailed Stunna. Lets see what the response is.

I think it is showing the secret from 48 hours ago instead of 24 hours ago for some reason. Thanks for bringing this to my attention I'll update this post when our developer replies. Obviously no foul-play was involved as this is the case for every single bet apparently.


EDIT: This should be sorted out, was displaying an old secret as I suspected. Re-look up the bets you'd like to examine.

Thanks for the Update.

I tried 3 other rolls and couldn't get anything to match up. Didn't want to spend more time fiddling with it as silly differences like joining ASCII strings with commas instead of periods or empty strings will give different results.

Obviously not checking every roll with client side code running off your hard drive (or where can't be changed by site operator) defeats the point of provable fairness. And you have no one but yourself to blame if you lose serious money to a casino that offers provable odds you could have checked.

I didn't find any Google results verifying PrimeDice, which was very interesting in itself.

Really like the look of current PrimeDice compared to other bitcoin gambling sites. Obviously hired a quality designer.

There are plenty of provably fair verifier for PD, and the rolls going on are all provably fair. PD3 apparently has a new/better provably fair system. PD is my favorite site and there happens to be a small glitch where a days of rolls are not provably fair.

Ok I found this one googling verifier instead of verification http://bitcoinmaniac.com/verify/ because Google is unfair.

And it gives the same result as my code

What are some others?

And with these verifiers, you have to check the results of old rolls, monitor any code changes. Interesting hassle for non-coders. With PrimeDice's limited history you need to record old rolls yourself, as the 24 hour secret reveal thing will clear that history if you keep gambling? Is there a full user history anywhere?

Yeah, a full history would be a nice feature for PD3...

Issue has been solved! Thanks! Locking topic.