I guess I'd need an account to view it.
I was playing in Freebitco.in during ~3 years. These are my achivements on the sceenshot below. Free rolls played = 10467. The biggest numbers I rolled are:
9993 - 1 time
9992 - 2 times
9990 - 1 time
9989 - 2 times
and never bigger than 9993.
Really? I don't get into the other more technical stuff you mention but that may be due to simple and pure variance. Are you seriously skeptical based on one person's statistical sample?
I've seen similar results before. Back in the days, I also rolled a couple thousand freerolls myself, and found similar results. But since I only had maybe 3000 rolls, I assumed it was because of variance. However, with 10467 rolls that's not very likely (far less than 0.1% chance). Add the fact that not all rolls completed, and this statement doesn't seem too far fetched:
server seed hash was REPLACED with a new one
Unfortunately, I don't have the dedication to do 30,000 freerolls myself, but if anyone else wants to do it I'd love to see the results.
As a test, I created 100 sets of 10,467 random numbers (0-9999) on my PC. 70 of the sets have the number 9999 at least once, and 66 have 9998 at least once. There's only 1 set in which 9995 is the highest. That means 99% has at least hit 9995. now this is the variance I expected.LoyceV thinks provably fair is worthless because it wasn't made to do what he wants to use it for.
Would it be possible to adjust it in such a way the user can prove when server seeds get changed, so that he could still verify "missed" rolls? That would clear cases like pangolier88's.
I like how Bustabit for instance does it: all rolls can be verified completely, but I get that it can't be used in dice.
If any provably fair site started cheating they wouldn't have any customers left in a very short time.
Especially with selective cheating, it's hard to detect for a user. And many users won't even bother to verify their rolls, especially if they need to check hashes before each roll. That's why for instance 999Dice could cheat users for years.
A thought just occurred to me: if pangolier88 is right, TheQuin would probably not even know it, right? I take it you don't have access to that level on the server that would need to be verified.