The Transpareo Time Machine is a single-page app (SPA) you embed as one custom element. Point it at a Digital Product Passport and it renders an interactive card: the product’s current details up front, and a timeline the visitor can scrub back through to replay every earlier version the passport has had. A verification chip on the card shows whether the data is authentic, checked cryptographically in the visitor’s own browser instead of taken on trust from a server.
