I was in the same situation and can relate my story:
1. I was on the birth certificate of the child, but being on the Birth Certificate DOES NOT gives you automatic parental rights.
Parental rights, in some extent, have to been granted by a COURT ORDER.
2. Even with an court order, Issaan "laws" grant the mother FULL RIGHTS over the child until the age of 21 years.
Example: if you would buy a house on the childs name, even with a court order that the child would be the only beneficiary of the house, the mother will have the FULL CUSTODY over the child and his/hers belongings.
In 2011 I needed to go to the City hall to apply for a ID-Card for my child and, even while I had the FULL CUSTODY over my child on the divorce certificate, the clerck at the city hall wanted to see my wife to sign for the ID-Card of the child.