Help needed to Determine "Obama" Official Name

In case of Obama there is no evidence anywhere to ascertain, what Obama’s full name is. Obama’s different documents show his full name to be either Barack Obama or Barack Hussein Obama or Barack A Hussein Obama (nobody knows what initial A. stands for, though it is rumored to be Abdullah), Barack Hussein Obama, II,  or Barack Obama Soebarkah, or Barry Obama or Barry Soetoro. Nobody knows, what is this man’s full name. Obama or his representatives got the complaint and had an opportunity to provide competent admissible evidence of his full name. They never did it.