The party or parties who will be attending the prove-up in their case must have certain documents in order to complete their divorce case. I, the undersigned (attorney for the) Petitioner, CERTIFY that I examined the Clerk's file, docket, and computer.Qa CONTRIBUTION HEARING will occur subsequent to the prove-up and before Judgment. Pecidonsr. The prove-up is a simple hearing where you prove the allegations of your Petition to the judge and request your relief. To vacate a default judgment you should fill out an Order to Show Cause. How to fill out the Order Prove-Up Form for Cook County Illinois? Step 4: The Final Hearing ("Prove-up").