b. The natural father, may be established by proof that his paternity has been adjudicated under prior law; under the laws governing probate; by giving full faith and credit to a determination of paternity made by any other state or jurisdiction, whether established through voluntary acknowledgment or through judicial or administrative processes; by a Certificate of Parentage as provided in section 7 of P.L. 1994, c.164 (C.26:8-28.1) that is executed by the father, including an unemancipated minor, prior to or after the birth of a child, and filed with the appropriate State agency; by a default judgement or order of the court; or by an order of the court based on a blood test or genetic test that meets or exceeds the specific threshold probability as set by subsection i. of section 11 of P.L. 1983, c.17 (C.9:17-48) creating a rebuttable presumption of paternity. In accordance with 42 U.S.C. s. 666(a)(5), a signed voluntary acknowledgment of paternity shall be considered a legal finding of paternity subject to the right of the signatory to rescind the acknowledgment within 60 days of the date of signing, or by the date of establishment of a support order to which the signatory is a party, whichever is earlier.
The adjudication of paternity shall only be voided upon a finding that there exists clear and convincing evidence of: fraud, duress or a material mistake of fact, with the burden of proof upon the challenger;