Develop and demonstrate a Digital Product Passport for Carbon-Reduced Concrete emphasising Cross-Atlantic Legislation and Governance.

Coach Name

Jordi Bosch i Garcia

EU Organization

OwnYourData (Verein zur Förderung der selbstständigen Nutzung von Daten)

Members

  • Dr. Christoph Fabianek
  • Julia Flaszynska
  • Martin Kjäer
  • Thomas Preindl

CA Organization

Doka Canada Ltd./Ltee

Members

  • Gunnar Falke

Project Overview

The DPP-CRC project developed a Digital Product Passport (DPP) for carbon-reduced concrete using Self-Sovereign Identity (SSI) and Zero-Knowledge Proofs (ZKPs). The goal was to create verifiable, tamper-proof Environmental Product Declarations (EPDs) that support sustainable practices and carbon footprint reduction in the construction sector.

The project addressed regulatory differences between the EU and Canada and demonstrated practical applications across both markets.

Methods and approaches

Privacy-Preserving Technologies

Implementation of Zero-Knowledge Proofs (ZKPs) for verifying environmental data without disclosing proprietary information.

Dynamic EPD Calculations

Shift from static to individualised, project-specific EPDs that reflect real-time concrete composition and environmental impact.

Digital Identity and Data Sharing

Use of Self-Sovereign Identity (SSI) and Decentralized Identifiers (DIDs) for secure and verifiable digital interactions along the supply chain.

Data Intermediary Platform

Creation of a neutral, DGA-compliant Data Intermediation Service Provider (intermediary.at) enabling trustworthy and scalable data sharing.

Iterative Prototyping & Testing

Multi-stage development from concept validation to full construction lifecycle demonstration, including end-to-end workflow testing and real-use case scenarios in EU and Canada.

Key Achievements

Creation of a DGA-compliant Data Intermediary company

in Austria (intermediary.at)

Successful demonstration of ZKP-based EPD validation

for multiple construction phases (A1-A5)

Integration with Sphereon’s open-source wallet

including support for did:oyd

Cross-continental use case validation

with industry partners in both Europe and Canada

Impact & Results

Scientific Impact

Contributed to publications in privacy-preserving tech, including the Handbuch Datenschutzrecht

Economic Impact

Established foundations for a scalable, privacy-oriented market solution

Industrial Impact

Pioneered trust-based data sharing in construction aligned with the EU Green Deal and Circular Economy

Regulatory Impact

Identified pathways for EPD adoption and DPP certification across diverse regulatory environments

Publications and Open-Source Contributions

 Publications

  • Handbuch Datenschutzrecht by Christoph Fabianek
  • Research expansion via the PACE-DPP project

 Open-Source Contributions

Activities and Events

  • Final Presentation at PORR HQ (Austria’s largest construction company)
  • Workshops and interviews with 45+ stakeholders
  • Multiple coaching and dissemination events via NGI Sargasso

Future directions

Further development under the PACE-DPP research project
Deeper industry integration with partners like Sequello and Wopfinger Transportbeton
Move towards certification and standardisation of EPD processes
Expansion into broader Circular Economy and BIM-linked certification systems