I don't want to be pesky about this, but, what if i really don't have a document like that at hand?
Well, that would be a real extraordinary scenario. Still, we can accept in any case a state issued non driver identification card or even, if that's the case, an adoption decree.
But, if i only had the child's certification of report of birth, that could work, right?
That's right. A certification of report of birth, aka form DS-1350, should prove to be enough.