eDiplomas

eDiplomas is a digital diploma verification platform developed by the Greek Universities Network (GUnet) in collaboration with Greek higher education institutions. Launched in 2021, the platform enables secure verification and sharing of university diplomas through an OAuth2-based architecture that provides granular access control to diploma information.

The system implements Self-Sovereign Identity principles through integration with the W3C Verifiable Credentials Data Model and the European Blockchain Services Infrastructure (EBSI). Key technical features include:

• Digital signatures and encryption for credential authenticity
• OAuth2 scopes for granular data access control
• Integration with the Greek TAXISnet authentication system
• Support for the EMREX network for cross-border credential exchange
• Zero-knowledge storage design that only maintains encrypted tokens and matching identifiers

Notable adoption includes participation in the European Blockchain Partnership's cross-border pilots, particularly a successful demonstration between Greece and Cyprus enabling Cypriot citizens to verify Greek university credentials. The platform has been endorsed by the Greek Ministry of Education and integrated into the national digital services infrastructure, with over 2,500 diploma templates registered from Greek higher education institutions. eDiplomas represents a key initiative in the EU's broader push toward blockchain-based digital credentials and cross-border academic mobility.