Upon the merger date, the secretary of the district shall record in the office of the Recorder of the County of Los Angeles a certificate setting forth the date upon which the Southern California Rapid Transit Law became effective and stating that the district was created by such law and that by virtue of Section 31000 thereof the district succeeded on the merger date, without other transfer, to all the rights and property of the authority subject to all the legally enforceable debts and liabilities of the authority.