This technical white paper provides an overview of the privacy-preserving validation server prototype from project, researcher, and technical perspectives. In the first section, we discuss the purpose of the project, our process for building the prototype, key concepts, and how we envision a researcher might use the tool. In the second section, we provide detail on how this system could be adopted by other organizations. We explore technical details about how the front end, application programming interface, and back end function; how the prototype can be set up and configured; and how the system might be modified and improved.