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Ed Felten

Ed Felten

Co-Founder & Chief Scientist of Offchain Labs; Professor Emeritus at Princeton, Offchain Labs / Princeton University

Personal website Offchain Labs / Princeton University website

Bio

Ed Felten is the Co-Founder and Chief Scientist of Offchain Labs, and Professor Emeritus of Computer Science and Public Affairs at Princeton University. He is one of the most distinguished academic researchers in computer security and technology policy to have entered the blockchain space.

Felten's career spans decades of influential security research, including work on secure systems, electronic voting and the intersection of technology with law and policy. He served as Deputy Chief Technology Officer of the United States under President Obama from 2015 to 2017, advising the White House on technology and privacy issues. At Princeton, he directed the Center for Information Technology Policy.

Together with his PhD student Steven Goldfeder and Harry Kalodner, Felten co-authored the original Arbitrum research paper and co-founded Offchain Labs. His academic rigor and policy experience have shaped Arbitrum's security-first design philosophy. As Chief Scientist, he continues to guide the protocol's research direction. Information last checked: August 2026.

Profile at a glance

Country
USA
Status
Active

Work & Project Background

  • Offchain Labs

    Co-founder

  • Arbitrum

    Co-founder

Key Contributions

Arbitrum Co-Invention

Co-authored the original Arbitrum research paper and co-founded Offchain Labs to bring optimistic rollup scaling to Ethereum.

US Deputy CTO

Served as Deputy Chief Technology Officer of the United States, advising on national technology and privacy policy.

Security Research

Published decades of influential research on computer security, secure systems and electronic voting vulnerabilities.

Princeton Academic Leadership

Led the Center for Information Technology Policy at Princeton, bridging computer science with public policy.

Protocol Security Design

As Chief Scientist, shaped Arbitrum's security-first design philosophy and fraud-proof verification system.

Timeline

Pre-2015

Professor of Computer Science at Princeton; directed the Center for Information Technology Policy; published influential security research.

2015–2017

Served as Deputy Chief Technology Officer of the United States under President Obama.

2018

Co-authored the Arbitrum paper with Goldfeder and Kalodner; co-founded Offchain Labs.

2021

Arbitrum One mainnet launched; Felten served as Chief Scientist guiding protocol research.

2024–2026

Continued as Chief Scientist at Offchain Labs; transitioned to Professor Emeritus status at Princeton.

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