What is a Digital Product Passport — and what is post-purchase commerce?
Two terms you're going to hear a lot over the next 24 months. Here's what they actually mean, in plain language.
Leanne Elliott-Young & Cat Taylor
Co-founders, PATINA

Two terms you're going to hear a lot over the next 24 months. Here's what they actually mean, in plain language.
What is a Digital Product Passport?
A Digital Product Passport (DPP) is a persistent digital identity attached to a physical product — usually accessed by scanning a QR code, NFC tag or RFID chip on the item itself. It carries structured data about that product: what it's made of, where it came from, how it should be cared for, and what happens to it across its lifecycle.
A Digital Product Passport gives a product a persistent digital identity. Brands are already using this identity to power services, ownership, and revenue after the point of sale — not just to record information.
Most of the market is treating the DPP as a compliance document: a static record, a data field, a PDF you scan once and never think about again.
What is post-purchase commerce?
Post-purchase commerce is everything that can happen with a product after it's sold — authentication, resale, repair, access, care, re-engagement — when that activity is governed by software instead of left to chance.
Today, a product's relationship with the brand that made it effectively ends at checkout. Everything that happens next — someone reselling it, getting it repaired, wondering if it's real, forgetting the brand exists — happens somewhere the brand has no visibility and captures no value. Post-purchase commerce is what happens when that stops being true.
Why these two ideas belong together
A Digital Product Passport gives a product an identity. Post-purchase commerce is what you do with that identity once it exists.
Treated separately, a DPP is a filing requirement. Treated together, a scanned product becomes a live channel: a way to verify it's genuine, route resale back through the brand instead of losing it to a marketplace, unlock a repair booking, or simply keep the relationship with the person who bought it going.
That's the shift Patina is built for — not to help brands file a compliance record, but to give them the operating system that decides what a product does, every time someone interacts with it, for as long as that product exists.
Patina is the operating system for a product's life after purchase, built on the belief that products should become more valuable through their history, not less.


