R.I. Gen. Laws § 45-25-9: Certificate as evidence of incorporation.

In any suit, action, or proceeding involving the validity or enforcement of, or relating to any contract of the authority, the authority shall be conclusively deemed to have been established in accordance with the provisions of this chapter upon proof of the issuance of the certificate by the secretary of state. A copy of the certificate, duly certified by the secretary of state, is admissible in evidence in the suit, action or proceeding, and is conclusive proof of the filing and contents.