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Arthur Breitman

Arthur Breitman

Co-Founder of Tezos; Tezos Foundation Council Member, Tezos / Trilitech

Tezos / Trilitech website

Bio

Arthur Breitman is the Co-Founder of Tezos, a Layer-1 blockchain distinguished by its self-amending protocol and on-chain governance mechanism. He co-created Tezos with Kathleen Breitman, who remains a co-founder with equal attribution.

Breitman's academic background spans applied mathematics, and his pre-crypto career included quantitative finance roles at Goldman Sachs and Morgan Stanley, as well as research engineering experience at Google and Waymo — all of which informed the formal, mathematically rigorous approach he applied to Tezos' protocol design. He is currently a member of the Tezos Foundation Council and is associated with Trilitech, a Tezos ecosystem development company.

Tezos is governed through on-chain voting by its token holders (XTZ/tez), allowing the protocol to upgrade without hard forks. The network has undergone numerous governance-approved protocol upgrades since its 2018 mainnet launch. Breitman continues to contribute to protocol research and proposals, including work on LST/sTEZ staking infrastructure, though individual proposals must pass on-chain governance before adoption.

Profile at a glance

Status
Active

Work & Project Background

  • Tezos

    Co-founder

Key Contributions

Tezos Protocol Design

Co-designed the Tezos self-amending blockchain with on-chain governance, enabling protocol upgrades without contentious hard forks — a novel approach in 2017.

On-Chain Governance Pioneer

Pioneered on-chain upgrade governance where token holders vote directly on protocol changes, later influencing governance design across the broader blockchain ecosystem.

Tezos Foundation Council

Serves as a Tezos Foundation Council member, contributing to long-term protocol stewardship and ecosystem strategy.

Trilitech Ecosystem Development

Associated with Trilitech, a company accelerating Tezos ecosystem development through tooling, partnerships, and enterprise integrations.

LST/sTEZ Proposal

Co-authored the canonical liquid staking token (LST/sTEZ) proposal for Tezos in 2025–2026, contributing to the network's DeFi infrastructure roadmap (pending full on-chain adoption).

Timeline

2014
Published the original Tezos position paper under the pseudonym L.M. Goodman, outlining a self-amending cryptographic ledger concept.
2017
Co-founded Tezos with Kathleen Breitman and the Tezos Foundation. Conducted one of crypto's largest ICOs at the time, raising approximately $232M.
2018
Tezos mainnet launched after significant delays related to disputes between the Tezos Foundation and the Breitmans. On-chain governance and self-amendment mechanisms went live.
2019–2022
Tezos underwent multiple successful on-chain governance upgrades (Athens, Babylon, Carthage, Delphi, Edo, Florence, Granada, Hangzhou, Ithaca). Breitman remained active in protocol research.
2023–2024
Etherlink — an EVM-compatible Layer 2 on Tezos — launched, expanding smart contract accessibility. Trilitech emerged as a key ecosystem development entity.
2025–2026
Breitman co-authored a proposal for canonical LST/sTEZ liquid staking on Tezos. Serves on Tezos Foundation Council and is associated with Trilitech leadership. Protocol scaling and DA roadmap continued.
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