A state appeals panel on Friday rejected the constitutional challenge of a man who must register as a sex offender decades after he was convicted and completed his sentence.In 1983, Jerome Bingham was convicted for attempted criminal sexual assault. He was not required to register as a sex offender as the state’s registration law was not enacted until 1986.But under the current iteration of the Sex Offender Registration Act, people with sex crime convictions that predate the 1986 law must register if they are …