
Zero Knowledge Zerocoin to zk-creds: Modern ZK History with Ian Miers
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Sep 24, 2025 Ian Miers, an Assistant Professor at the University of Maryland and a pioneering figure in zero-knowledge technology, covers a wealth of intriguing topics. He discusses his groundbreaking work on Zerocoin and Zcash, addressing early challenges in privacy on public ledgers. Ian shares the evolution of trusted setups, including Powers of Tau, and introduces his innovations like zk-creds for flexible anonymous credentials and zk-promises for anonymous reputation systems. The conversation also explores critical issues such as post-quantum security and the ethics of programmable privacy.
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Trusted Setups Scaled Up
- Trusted setups evolved from small closed ceremonies to scalable, updatable multi-party protocols.
- Powers of Tau and later work made participation auditable and decentralized at scale.
Cabin OPSEC At Early Ceremonies
- Peter Todd attended an early Zcash ceremony and used decoy travel and cabin OPSEC measures.
- Participants took extreme precautions because the original ceremonies required constant online presence.
Two Dimensions Of Setup Progress
- Two separate problems: reusable universal parameters and practical multi-party ceremony UX.
- Solving both was key to public trust and broad adoption of SNARK systems.



