In a word, IMPOSSIBLE. I'll repeat myself: You don't know who his mother and father were. You don't know when he was born. You don't know where he was born.
How-ever, one thing does appear to be becoming apparent: there was a child born in Hawaii named Barack Hussein Obama 11, probably in January 1961 and that child wasn't zero. The name of the dark boy's father is correct, but all we know about his mother is that her name was either ANN or ANNA OBAMA, and she was enrolled at the University of Hawaii for Fall, 1960.
That dark child, so evidently older than zero, next shows up with his father, Ruth and their son Mark in 1965/66 IN KENYA, when he's five or six years old:


One question I have is that since it is obvious to anyone with a questioning and non-infatuated mind, that the man in the WH was not born with the name Barack Hussein Obama, but he is using that name now, are ANY documents with the name BHO that refer to him at all legal? Totally apart from any out and out forgeries.
If a person is using a fake name that is legally his name, then I would assume that ANY and ALL papers signed, or documents in that name, are neither legal nor binding.
I wonder about this.