Municipal source data successfully linked to EUDI Wallet

Update: 17 December 2025

In November, a significant milestone was reached within the Uniform Source Disclosure (UBO) project. For the first time, municipal source data – such as a birth certificate – was successfully and securely made available in a digital identity wallet that complies with the requirements and standards of the new European regulation for this purpose. 

This step moves Dutch authorities nearer to enforcing necessary European rules and regulations, including the Single Digital Gateway (SDG) and the eIDAS Regulation.

What led to this development?

The European Union is introducing a new digital identity solution, the EUDI Wallet, for citizens, businesses, and governments under the eIDAS regulation. In practice, it is a smartphone app that enables users to securely prove their identity, share data, and store documents. Use of the wallet remains voluntary, and traditional identification methods will continue to exist.

What has been achieved?

During a hackathon, a resident of Rijswijk successfully retrieved and uploaded a birth certificate to an EUDI Wallet. This achievement was enabled by a secure connection with:

• The Once-Only Technical System (OOTS) infrastructure.
• A Qualified Trust Service Provider (QTSP), authorised to issue official digital attestations.

The solution complies with both European and Dutch standards. Thanks to the OOTS infrastructure, municipalities can utilise a single, standardised connection to share data securely both nationally and across Europe. This enables them to fulfil multiple (European) legal obligations in the future.

Why is this important?

• The OOTS connection provides a single, secure route for data exchange.
• Residents can request and share official documents more quickly and easily.
• Municipalities are moving towards an integrated, modern digital system aligned with European standards.
• The wallet enables the widespread use of legally valid digital signatures and trusted digital documents.

Get involved or find out more

This development illustrates what can be achieved when local authorities, implementing organisations, and market parties work together on common standards. For more information, visit the Digilab website (Dutch).