California Code, Public Resources Code - PRC § 3917

Whenever a coowner or coowners of a mining claim give to a delinquent coowner or coowners the notice in writing or notice by publication provided for in Section 2324 of the Revised Statutes of the United States,  1 an affidavit of the person giving the notice, stating the time, place, manner of service, and by whom and upon whom service was made, shall be attached to a true copy of the notice.

The notice and affidavit shall be recorded in the office of the county recorder, in books kept for that purpose, in the county in which the claim is situated, within 90 days, after the giving of the notice.  For recording the notice and affidavit, the recorder shall receive the same fees as are allowed by law for recording deeds.

If the notice is given by publication in a newspaper, there shall be attached to a printed copy of the notice an affidavit of the printer or his or her foreman, or principal clerk of the newspaper, stating the date of the first, last, and each insertion of the notice therein, and where the newspaper was published during that time, and the name of the newspaper.  The affidavit and notice shall be recorded within 180 days after the first publication thereof.