Actually Nevada does not request for "official" thing directly from FSMB since I applied online via Uniform application which is run by FSMB (private company). Interestingly on the online form there is no place to put the scores. Nevada just want me to hand write the scores on their supplemental forms. All this does not make sense if they want the proof that I passed all. At any rate, since some other states are also requesting, I feel better. Thanks everyone that replied.
By the way, do people use FSMB's state license application service, FCVS? I was about to but then read horror stories on online reviews and decided against it. Another $400 to folk over to the monopoly.