This podcast episode explores the concept of Sismo and its use of zero-knowledge proofs (ZK proofs) to create privacy-preserving badges. The speakers discuss the challenges of privacy and identity linkage in the Web3 landscape, the importance of decentralized finance (DeFi), and the potential applications of ZK badges. They also delve into the features and infrastructure of Sismo, including the Sismo Hub, zk-attestors, and zk-proofs. The speakers emphasize the power of ZK badges in various contexts, such as events and access control, and discuss their roadmap for the future. The episode concludes with a discussion on the Prove with Sismo Flow product and its application in enabling privacy-preserving airdrops. Overall, this episode highlights the significance of privacy, identity verification, and creating a strong infrastructure in the Web3 ecosystem.