Evolving ZK Identity from Iden3 to Privado & Billions

In this episode, Anna Rose chats with David Z and Oleksandr (Sasha) from Privado ID and Billions Network about the evolution of ZK-based identity systems, tracing their roots back to iden3 in 2018, one of the earliest projects to pioneer ZK for on-chain identity. They discuss their origin as the iden3, their creation of the influential Circom DSL, the move into Polygon ID, the spin-out as Privado ID with a focus on B2B privacy tools and verifiable credentials, and the recent launch of Billions Network, which aims to build a scalable network of humans and AI agents with mobile-first verification and progressive proofs. They compare their broad, composable approach to projects like Self, Rarimo, and ZK Email, while highlighting future plans for reputation layers, on-chain economies, and AI agent identities to enable accountable interactions in a decentralised world. Related Links

• Privado ID introduces Billions: The First Global Human & AI Network
• Billions Launches Mobile App for Digital Identity Verification in the Age of AI
• DEEPTRUST: VERIFIABLE IDENTITIES AND REPUTATION FOR AI AGENTS
• Iden3 Protocol Specifications (Version 0)
• W3C: Verifiable Credentials Overview
• Poseidon: ZK-Friendly Hashing
• European Digital Identity
• ZK HACK - Introducing Circom 2.0 - Iden3
• Iden3: Sparse Merkle Trees
• Billions App Transforms ID Verification with Privacy-First Liveness Checks

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