Blockchain development, cryptocurrency, and open-source technology by Jeff Garzik
Jeff Garzik is an early Bitcoin Core contributor and former software engineer at Red Hat. He co-founded Bloq, a blockchain infrastructure firm developing multi-chain systems and led development of the Hemi Network in 2025. Hemi’s Proof-of-Proof protocol proposes a novel interoperability model linking Bitcoin security guarantees to Layer-1 scalability across Ethereum and Cosmos ecosystems.
Garzik also founded NextCypher Productions, a Web3 media studio focused on decentralized storytelling. His advisory roles span over a decade, including BitFury, Coin Center, and various early token projects. As of 2025, Garzik remains an advocate for Bitcoin-first interoperability, citing regulatory neutrality and security anchoring as strategic priorities.
Garzik combines technical legacy with forward-thinking architecture, consistently building tools that extend Bitcoin’s role in a modular crypto landscape.