2011 ORS § 93.470¹
Indorsement of certificate of proof

Every officer who takes the proof of any conveyance shall indorse a certificate thereof, signed by the officer, on the conveyance. In the certificate the officer shall set forth those matters required by ORS 93.440 (Proof of execution by subscribing witness) to 93.460 (Subpoena to compel witness to testify to execution of deed) to be done, known or proved, together with the names of the witnesses examined before the officer, and their places of residence, and the substance of the evidence given by them.