Pilot projects DC4EU is one of the four initial Large Scale Pilot Projects that tested prototype EU Digital Identity Wallets in several use cases in real-life settings across Europe. Their work began in 2023 and ended in 2025. Co-funded by European Commission grants, DC4EU focused on the education and social security use cases.
European countries formed DC4EU.
Institutions backed by 43 public organisations and 49 private entities.
Use cases piloted. Here is the list of all European countries that participated in this successful program. Austria Belgium Czech Republic Denmark Finland France Germany Greece Hungary Ireland Italy Lithuania Luxemburg Malta Netherlands Norway Poland Portugal Romania Spain Sweden Ukraine 4 Use cases were tested both nationally and across borders in the social security and education domains. Enabling digital credentials for education and professional qualifications across the EU
DC4EU created a secure, interoperable digital credential system integrated with European digital Identity Wallets. They tested the digital issuance of educational diplomas use case and the recognition of professional qualifications use case. The work enables seamless cross-border recognition,
enhanced student mobility, and simplified qualification verification in line with the EU’s 2030 Digital Education Action Plan. DC4EU tested the framework’s scalability and real-world effectiveness.
Demo videos illustrate the issuance and verification of credentials using demo wallets: To ensure cooperation and build trust across countries, DC4EU established a robust ecosystem governance framework. This framework guarantees that all partners follow common guidelines, enabling trusted collaboration within the EUDI Wallet ecosystem. DC4EU designed the onboarding processes that enable individuals to access and use their national EUDI Wallet. This work ensures legal and technical alignment with EU regulations and provides the necessary groundwork for digital credentials to function across borders. If you want to learn more you can consult the following documents: Clarifies the legal requirements for the onboarding of EUDI users. Covers digital attestations of attributes. Comprehensive analysis of onboarding processes for Person Identification Data and attestation providers within the EUDI ecosystem. DC4EU worked on an open source architecture and interoperability lab to support the integration, testing, and development of secure, standards-based components within the European Digital Identity Wallets ecosystem. Open source architecture developed and tested by DC4EU. It serves as a foundation for further discussions. Describes the interoperability lab, enabling testing and integration of digital identity components. It helps stakeholders ensure system compatibility and supports the expansion of the wallet ecosystem. DC4EU has developed a sustainability business strategy that outlines potential business and revenue models and estimates the scope of the future EUDI ecosystem — including the number of users expected to store and share PIDs and attestations. To promote their piloting work and EU Digital Identity Wallets more broadly, various commutation efforts were carried out by DC4EU, including creating a website, and social media communication. To learn more about the strategy behind these efforts, explore the Communication, Dissemination, and Visibility Plan.Large Scale Pilot DC4EU
The Key figures
22
Organisations from these 22 countries came together to pilot EUDI Wallets.
99
All working to achieve the goal of enabling citizens to have full control of their personal data, with a high level of trust and cross-border recognition.
4
DC4EU tested 4 real-life use cases to prove that EU Digital Identity Wallets can work in both the education and social security domains, both nationally and cross-border.
The European countries that were part of DC4EU
Discover the use cases that DC4EU developed
Education
Ecosystem governance framework
Based on Trust Over IP principles, it provides unified rules and policies to support secure, cross-border data exchange.EUDI Wallet onboarding
Issuance and verification legal analysis
Onboarding process analysis
Integrations and development
Open source architecture
Interoperability lab guide
Looking to the future
Promoting the work of EU Digital Identity Wallets
Overview
Content Tools
Social Security
Digital issuance and verification of EU social security documents
DC4EU developed a secure, decentralised digital framework to issue, revoke, and verify social security entitlement documents. They tested the Portable Document A1 use case and the European Health Insurance Card use case using EUDI Wallets.
They tested this system with real and simulated data to evaluate its effectiveness and interoperability in real-world conditions.
Demo videos illustrate the issuance and verification of social security documents using demo wallets:
Want to learn more?
Read the following documents:
Download the business blueprint
Download the deployment and testing results
Demo – Issuing social security documents with an EUDI Wallet
Demo – Verifying social security documents with an EUDI Wallet
Want to learn more?
Read the following documents:
Download the business blueprint
Download the deployment and testing results