1. Complete the court forms, following all of the steps in these instructions. 2. An Apostille is a certificate that authenticates the signature of a public official or a notary public on a document for use in another country.Complete the document in the notary's presence and present your proof of identity to the notary. Or, you may complete this form without a notary public. If you have a Minnesota Tax ID Number and a Withholding Tax account, log in to eServices to file a contractor affidavit electronically. Note: If U.S. citizenship is verified with a Level 1 document, the identity verification requirement is met. Send the enrollee the Request for Proof of Citizenship and Identity (DHS-6230) and enclose the Citizenship and Identity Proofs (DHS-6231).