§ 9-16.3. Certification of publication
Whenever any notice signed by the mayor, board of aldermen, or any city officer or officers, or any advertisement, ordinance, resolution or bylaw shall have been published in some newspaper or publicly posted under the provisions of the general law, this charter or the ordinances thereby authorized, the city clerk shall examine and ascertain whether such notice, advertisement or ordinance has been duly published or posted, and if such be the fact he shall so certify upon the proper city record; and such record or a duly certified copy thereof shall be treated as prima facie evidence of the facts so certified.