An officer taking proof of the execution of any instrument must, in his certificate indorsed thereon or attached thereto, set forth all the matters required by law to be done or known by him, or proved before him on the proceeding, together with the names of all the witnesses examined before him, their places of residence respectively, and the substance of their testimony.
Cal. Civ. Code § 1200
Proof and Acknowledgment of Instruments
Enacted 1872.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.