2006 New York Code - Record Of Ordinances.

 
    § 39. Record  of  ordinances.  Every  ordinance shall, upon its taking
  effect as herein provided, be recorded in a book kept for  that  purpose
  by the clerk. Such records shall include the signature of the president,
  attestation of the clerk and the mayor's written approval, or in case of
  his  disapproval  a  memorandum of its passage over his veto; or in case
  the ordinance took effect because he failed to approve or disapprove and
  return within ten days, then a memorandum to that effect. Such record or
  a certified copy thereof, shall be presumptive evidence of  the  passage
  of  the  ordinance  and  of  the facts certified. The original engrossed
  ordinances for each year shall be bound together and kept in the custody
  of the clerk.