Rhode island constitution
Article XIII: home rule for cities and towns
Section 10

Duplicate certificates shall be made setting forth the charter adopted and any amendments approved and the same shall be signed by a majority of the canvassing authority; one of such certified copies shall be deposited in the office of the secretary of state and the other after having been recorded in the records of the city or town shall be deposited among the archives of the said city or town and all courts shall take judicial notice thereof.