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First: I am not in any way affiliated with them.
That being said - anyone questioning how their games work, can always contact support and ask - its as simple as that, no? Sorry guys... with all due respect, its not like most of the people posting in the gambling section actually do care - all they care about is meeting their minimum quota for the sig campaign. ^^ (There are exceptions of course)
Other than that - I even agree that it would be nice and the section should have been updated by now.

Thanks efialtis for pinging me. I fully agree with you, if anyone interested in details can contact support directly and our technical specialists can explain how things works. We never received such questions with our support channels, which one more time proves what efialtis said.
Please check-out our open-source fairness calculator here:
https://codesandbox.io/s/luckydice-calculator-0k54i. Game is fully provably fair, and only reason we don't have more information about mini-games calculations was our high work load + some external factors affected on development process a bit.
We fully redesigned fairness section and will update it soon with our next game release.