EUDI Wallet
The European Digital Identity Wallet mandated by the eIDAS 2.0 regulation, which requires every EU member state to offer citizens a state-recognized wallet for identity and attribute credentials. A flagship real-world driver of decentralized identity and the OpenID4VC protocols.
The EUDI Wallet is the reference implementation the rest of the world is watching, and its technical choices are becoming defaults elsewhere: OpenID4VCI and OpenID4VP for issuance and presentation, SD-JWT and mdoc for credential formats, selective disclosure by default. For companies outside the EU the relevant question is not compliance but interoperability, because national schemes are converging on the same protocol stack.
See also: eIDAS 2.0 and the EUDI Wallet, OpenID4VC, mobile driver's license, national digital ID schemes
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