Public research showcase — synthetic data and read-only interactions.
Public buyer demo — marketplace data is synthetic; use a fictitious email and a password you do not use elsewhere.
Built around EU Digital Product Passport principles

Construction materials deserve a second life

TRACE issues blockchain-anchored material passports for reclaimed, surplus and circular construction materials, enabling reuse hubs and their members to buy and sell with trust.

What to try in this demo
  1. Browse the marketplace — every listing is synthetic: reclaimed, surplus or new circular material, and each card says which.
  2. Open a listing, then its passport, and click “Verify integrity” — it recomputes the material's fingerprint live and shows whether it matches.
  3. Where the passport shows “Check on chain now”, click it — it asks the blockchain registry directly whether it holds that same fingerprint.
  4. Create a free account with a fictitious email — there's no email verification; use a password you don't use elsewhere.
  5. Choose a quantity, click “Order at asking price”, and track the order under Orders.

DPP-ready data

Passports record composition, origin, condition and carbon in a structured form, in line with the EU Digital Product Passport's direction. Not a certified DPP.

Blockchain Anchored

Each passport's fingerprint is recorded on TRACE demo chain (VeChain Thor Solo). Anyone can re-check a passport against the chain from its passport page.

Circular Economy

Track deconstruction origin, condition grades, carbon savings, and reuse history.