WITNESS my hand and official seal. Signature. (Seal). A notary public or other officer completing this certificate verifies only the identity of the individual.Next, provide the name and signature of the person acknowledging receipt. Code of Civil Procedure. It serves both as proof of service and as a formal record that the receiving party has received the documents. Here are the basic steps to create an acknowledgement receipt: Use a company letterhead. Give the receipt a title. What is the Need for a Receipt for Your Business? FAQs; Receipt Sample. § 415.30) is the recommended method of serving a summons on a known-to-be represented party.