That is what you called as fair but not provably fair. The words fair and provably fair is not the same at all and you need to read about this if you dont know what it is since most bitcoin gambling sites use this. Provably fair is different because it cant be applied to live games and it is involving cryptography.
Speaking generally,the terms "Provably Fair" are self explanatory.
Nothing is self explanatory around here and everything got their own meaning and explanation already so it is just matter of wether someone like to know the real meaning of it or not since most people around here dont even want to consider knowing what provably fair is before gambling