We briefly discuss the range of cryptographic primitives being used by protocols that seek to make proof-of-work protocols obsolete. We shall focus primarily on these cryptographic building blocks themselves, not overly on the different protocols built form them.

In this talk we present re:claimID, a decentralized, self-sovereign identity
management system. re:claimID allows users to reclaim authority over their
identities and personal data. The system is built on top if a
state-of-the-art, decentralized directory service: The GNU Name System.
Built-in cryptographic mechanisms allow users to selectively disclose
personal data and the directory service ensures that this data is accessible
to authorized parties even if the user is offline. Through OpenID Connect,
integration and use of re:claimID is straight-forward and authorization
flows are familiar. In this talk, we present the current state of re:claimID
as well as a future roadmap.

Building a social network on top of net2o, and importing your existing data