# Professionals **Professionals** are anyone seeking a certification. A professional will receive a certification once they have men all the requirements. They can hold more than one certification at any time. A profesional can be tracked by their wallet address or by an external ID. This allows an off-chain system to manage their information, but still be able to link to their on-chain certifications. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.vanward.io/overview/professionals.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.