If it shows anybody other than Soetero as his father, then it is a fake. When a child is adopted, birth certificates are changed to place the adoptive parents on the BC.
We have a winner.
Why would he had been adopted in Hawaii? Wouldn’t he had been adopted in Indonesia? Why would Hawaii be aware of it at all?
For that matter, what evidence is there that he was actually adopted? Not all step-fathers adopt their step-children.