Stuart Haber

Stuart Haber is an American cryptographer and computer scientist known for his contributions in cryptography and privacy-preserving technologies, and is widely recognized as the co-inventor of the blockchain. His 1991 paper "How to Time-Stamp a Digital Document", co-authored with W. Scott Stornetta, won the 1992 Discover Award for Computer Software and is considered to be one of the most important papers in the development of cryptocurrencies. Haber and Stornetta are the most cited authors in Satoshi Nakamoto's original Bitcoin white paper, with three of eight citations referencing their work.

Haber received his B.A. from Harvard University and his M.S. from Stanford University, both in mathematics, and his Ph.D. in computer science from Columbia University. He began working at Bell Communications Research (Bellcore) as a Research Scientist in 1988, one year after obtaining his Doctorate, where he met W. Scott Stornetta, his future scientific partner and collaborator.

Career History

• Bellcore (1988-1994): Research Scientist specializing in cryptographic protocols
• Surety Technologies (1994 co-founder): Co-founded with Stornetta as a Bellcore spinoff; in 1995, Surety's offering constituted the first commercial deployment of a blockchain
• InterTrust (until 2002): Researcher in digital rights management systems
• HP Labs (2002-2017): Joined as a research scientist in the Princeton office, working for 15 years on cryptography and security related problems
• Kadena (2018-2025): Advisor on blockchain scalability and security
• SureMark Digital (current): Chief Cryptographic Officer

Haber served on the Board of Directors of the International Association for Cryptologic Research (IACR) from 2004 through 2011. What Stuart Haber could bring to his Chief Cryptographic Officer role at SureMark Digital: Drawing on 35+ years bridging academic cryptography research with commercial cybersecurity applications, and as co-developer of blockchain's core integrity mechanisms, Haber is uniquely positioned to architect cryptographic identity verification solutions that address modern threats like deepfakes and AI-generated impersonation, translating his foundational work in tamper-evident timestamping into practical enterprise authentication systems.

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