In this podcast, we explore the exciting world of decentralized identities, which offer a range of features that physical credentials simply can't match. We start by discussing selective disclosure, which allows users to share only the specific pieces of information that are necessary for a given transaction, rather than revealing their entire identity. Next, we delve into the concept of credential refresh, which enables users to update their credentials with new information, such as a change of address, without having to go through a lengthy and cumbersome re-verification process. We also examine predicate proofs, which allow users to prove that they possess a certain credential without revealing any additional information, and zero knowledge proofs, which enable users to prove that they have certain information without actually revealing that information. Throughout the podcast, we explore the potential benefits of decentralized identities, including increased privacy, security, and control over personal information. We also examine some of the challenges that come with implementing these new identity systems, including issues around interoperability and standardization. Overall, this podcast provides a fascinating glimpse into the cutting-edge world of decentralized identities and their potential to transform the way we think about identity and personal data.