Markus Sabadello, CEO of Danube Tech, will talk about DID Auth, an emerging building block in the SSI ecosystem. Although the technical details of DID Auth are not well-defined at this point, its general concept is clear: With self-sovereign identity infrastructure, the most trivial and straightforward functionality for identity owners should be the ability to authenticate, i.e. to prove control of a DID in some relationship or during a transaction. This could take place using a number of different data formats, protocols, and flows. DID Auth includes the ability to authenticate to web sites and applications, and to establish mutually authenticated communication channels. In this webinar, we will discuss the current state of the DID Auth concept, and how it relates to other efforts such as Verifiable Credentials and agent protocols.