# Certification DEXPIRY tokens can be used as digital certificates proving the authenticity, ownership or service history of a product. Each certificate would be represented as a non-fungible token (NFT) linked to a unique product - including information about the manufacturer, date of manufacture, services, calibrations and quality checks. Since the data is immutable and transparent, anyone could verify the authenticity of the certificate in real time without having to contact a third party, which is ideal for industries such as medical equipment, luxury goods or used electronics. Academic institutions could also issue diplomas and certificates in the form of DEXPIRY tokens, guaranteeing their authenticity, durability and immutability. Each token would represent a unique academic certificate - with information about the holder, institution, programme, date and achievements. Through smart contracts, it would be possible to automatically check the validity and ownership of certificates, without having to contact the faculty or archives. This would allow for faster validation when hiring, enrolling in further education or internationally recognising qualifications. --- # 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.dexpiry.com/dexpiry_public_eng/extra-use-case-models/certification.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.