This is quite plausible because the mother (a DR citizen) recognized and declared the minor as hers via a late declaration of birth. The Law as-is doesn’t provide that the mother and child must provide any dna tests to affirm this, unless either the mother or father questions their responsibility as parent via court.
As per DR Law recognition of a child imprints that individual with all responsibilities as the parent/guardian, which is what the Law cares about per child welfare.
Can a male do that as dad?