Digital Product Passport
for the Built Environment.
What material was used, who made it, and how much carbon was emitted — recorded verifiably for direct use in green certifications.
Cut data-gathering time to zero.
No more all-nighters at handover
Months of digging up material info disappear. Records are captured the moment materials arrive on site — already in EU DPP standard format.
BREEAM, DGNB and LEED submissions in one click
EN 15804 carbon report, material EPDs, and delivery records are auto-packaged. Submit directly to certification bodies — no conversion needed.
Respond to EU buyers instantly
Get ahead of ESPR DPP requirements. Material origin, carbon, and certifications are always ready in EU standard format — share on demand.
One material delivery,
one EU DPP record.
- 1What materialXPS thermal insulation 50mm
- 2Made by whomInsulux GmbH
- 3How much used4,500 m²
- 4How much carbon14,545 kgCO₂eq
- 5Verifiable proofHash #2f5d7b31a9ce…
Example: a 4,500 m² XPS insulation delivery to the Berlin Mitte office construction site, recorded as a complete EU DPP entry.
Verify it yourself,
without trusting us.
Every record carries a SHA-256 hash. Certifiers recompute it from the same data and compare — there's no need to trust buildchain's database.
- 01Material delivery recorded
Material name, quantity, supplier, and timestamp are captured as-is.
- 02SHA-256 hash attached
The full record is hashed into a 64-character value and stored alongside.
SourceConcrete C30/37 · 800 m³ · 2026-04-13 07:50↓ SHA-256Hash2f5d7b31a9ce4a40b4c98a13f99f6c0f18a8e63f7d2c8f1dca1d11ba0e8200a1Changing 800 m³ to 801 m³ produces a completely different hash. - 03Sent to the certifier
Data and hash are bundled and submitted as a single package.
- 04Independent re-verification
The certifier recomputes the hash with the same public algorithm and checks for an exact match.
Material carbon values come from official EPD bodies — IBU, EPD International — auto-synced into buildchain. Not figures we entered ourselves.
Registration time is stored with each record and cannot be altered afterwards. Point-in-time originals, not back-fitted data.
BREEAM, DGNB and LEED submissions,
auto-organized.
Started in the UK and the most widely used green building certification across Europe. Often required for large commercial and public procurement.
Standard green building certification across Germany, Austria, and Switzerland. LCA-based quantitative assessment is its core strength.
Started in the US and now adopted across 180+ countries. Frequently required in multinational HQ and public sector procurement.
Stats are approximations from official BRE Global, DGNB e.V., and USGBC sources; production version auto-syncs the latest.
Materials arriving on site are captured via QR and stored on the ledger instantly.
Per-material EPD carbon values are auto-summed into a project total.
Carbon totals, material EPDs, and ledger records bundle into a single submission PDF.
For companies facing
EU regulations head-on.
Preparing for DPP mandates
Organize material EPDs and supply history before ESPR DPP applies, and respond instantly when EU importers request data.
Pursuing BREEAM, DGNB and LEED
Material EPDs, delivery logs, and carbon data are auto-organized into a submission package — months of post-handover digging disappear.
Demanding Taxonomy alignment
Verify material origin and carbon figures yourself. Securing EU Taxonomy alignment data becomes straightforward.
Take a look now.
Three demo projects across planning, in-progress and completed states — with the Berlin Mitte office leading at 4 materials and 6 deliveries already registered.
Trade show demo. All data shown is illustrative and not connected to actual material databases or live blockchain.