As soon as practicable after the confirmation of any verdict rendered under sections 88.010 to 88.070 by the council of any third class city in the proceedings for the condemnation of private property, the city clerk shall file a full record, in a book provided for that purpose, of such proceedings, which record shall contain correct copies of all ordinances constituting part of the proceedings, the notices to the parties to the proceedings, and returns thereon; all notices published and the proofs thereof, all orders by the mayor, the names of the jurors and when impaneled, and the verdict of the jury, and such other documents and matters as the ordinances of the city may require. The mayor shall examine such final record of such proceedings, and if it be correct, sign the same; and thereafter such record, or copy thereof, certified by the city clerk, under his hand and the seal of the city, shall be competent evidence in all courts of this state of facts stated therein. The original papers shall be carefully preserved by the city clerk.