In this episode, Dr. Daniel Fett, expert cryptographer, returns to the show to discuss the landscape of privacy-preserving measures (such as selective disclosure, zero-knowledge proofs or ZKP, etc.) that are emerging to augment existing technologies and enable new scenarios. The discussion gets very concrete when Daniel describes selective disclosure JWT, or SD-JWT, a new IETF specification he is coauthoring that offers a simple and easy-to-adopt approach to produce JWTs capable of supporting selective disclosure. Here at Identity, Unlocked, we are huge fans of this new specification, and we hope this episode will help you get started!