Polkadot (DOT): "I Accidentally Killed It" — The $150M Frozen Parity Bug

1. From Microsoft Lab to Ethereum's First CTO

Gavin James Wood is an English computer scientist, born in Lancaster and educated at Lancaster Royal Grammar School. He finished a Master of Engineering at the University of York in 2002 and a doctorate in 2005 on visualizing musical audio, then worked as a research scientist at Microsoft before Ethereum.^[6]

During 2013 and 2014, Wood became one of Ethereum's co-founders, working alongside Vitalik Buterin, Charles Hoskinson, Anthony Di Iorio, and Joseph Lubin. The project's own history page is careful with credit: Ethereum was founded by Buterin in 2013, and several co-founders joined later, including Wood. He served as the Ethereum Foundation's first chief technology officer and left the Foundation in January 2016.^[6][3]

one computer for the entire planet^[6]

— Gavin Wood, describing Ethereum (as quoted in his biography)

His first contribution was code. On December 31, 2013, Wood authored the first commit of the C++ client cpp-ethereum — commit 306de204 — which the Early Days of Ethereum history project calls the first working Ethereum implementation, later renamed Aleth. The network itself went live on July 30, 2015, when the genesis block was mined.^[5][3]

2. Three Enduring Artifacts: Yellow Paper, Solidity, Web 3.0

In 2014 Wood released the document that gave the young protocol its engineering spine: Ethereum: A Secure Decentralised Generalised Transaction Ledger — the Yellow Paper, a formal definition of the protocol and a technical guide to the Ethereum Virtual Machine, the runtime that executes smart contracts. Its title page carries one author line: Dr. Gavin Wood.^[2][3][6]

Wood also helped create Solidity. Ethereum's official history credits him with developing the language. That documented role is substantial without treating one contributor as the language's sole inventor.^[3]

Web 3.0, or as might be termed the "post-Snowden" web, is a reimagination of the sorts of things that we already use the Web for, but with a fundamentally different model for the interactions between parties.^[1]

— Gavin Wood, ĐApps: What Web 3.0 Looks Like (April 17, 2014)

The essay was originally posted on April 17, 2014 — before Ethereum launched. Wood coined the phrase Web 3.0 in 2014, and in November 2021 Wired described him as the father of Web3, a label attached to a term that now fronts an entire industry.^[1][6]

3. EthCore, Rust, and the Day the Vaults Locked

Parity began small and untitled. By Wood's own account, the company started as EthCore in late 2015, founded by five people — Wood, Aeron Buchanan, TJ Saw, Ken Kappler, and Jutta Steiner — with Björn Wagner joining as a co-founder a year later. Wood's 2022 recollection of those days: the team's roles were fluid and nobody was especially fond of fixed titles.^[8]

The product was a second Ethereum client — literally Wood's second. Parity Ethereum, written in Rust, was first committed in late 2015 by Wood, Arkadiy Paronyan, and colleagues at EthCore, and released in early 2016. The sequence placed Wood on both sides of Ethereum client history: the first working C++ implementation and a later Rust client.^[5][6]

Then came the freeze. In November 2017, a vulnerability in multi-signature wallet code developed by Parity reportedly froze approximately $150 million worth of ether; one contemporaneous tally put the locked total above 600,000 ETH. The Web3 Foundation then disclosed that 306,276 ETH belonging to it was blocked in its primary offline multi-signature wallet because the depended-on library code had been retired.^[4][11]

It's simple really, imagine walking up to a bank vault and there's a button that says "Lock Forever"....... someone accidentally pushes it.^[11]

— devops199, the developer who triggered the freeze (November 7, 2017)

4. Polkadot: The Heterogeneous Second Act

Polkadot was not a response to the freeze — the calendar forbids that story. Wood's white paper, Polkadot: Vision for a Heterogeneous Multi-Chain Framework, is dated 2016 as Draft 1, a year before the wallets locked. Its title page identifies Dr. Gavin Wood as the author of that original technical vision.^[7]

The paper's thesis was architectural. Present-day blockchains, Wood argued, suffered because they tied canonicality and validity too closely together; a heterogeneous multi-chain could set the two apart. The document therefore establishes the design's chronology and scope without turning the later wallet failure into Polkadot's origin story.^[7]

Delivery took years. Polkadot's genesis block was produced on May 26, 2020 as a proof-of-authority network with governance controlled by a Sudo account. On June 18 it evolved into a proof-of-stake network, and on July 20 removal of the Sudo module transferred governance to DOT holders. Those milestones are recorded by the official Polkadot Wiki.^[12]

The scale arguments kept being tested. The official Polkadot Wiki says a 2024 benchmark called The Spammening delivered 143,000 transactions per second while using 23% of network cores on Kusama. Read beside the 2016 paper, the result can be seen as a later test of the scalability problem the paper described—not evidence that the test was designed as a direct answer to it.^[12][7]

5. Back at the Helm: The 2026 Status

Wood's chapters, in his own telling, loop between building and retreating. In 2022 he stepped back from running Parity to immerse himself in protocol research and development. Then, on August 13, 2025, he announced he would resume his duties as CEO in late August, as co-founder Björn Wagner stepped down after three years at the helm.^[8][9]

Last year I picked up the reins as CEO because that groundwork was laid and the world was finally ready for it. The architecture is defined and the bar is set. Now the job is to deliver, and that is where I intend to put my attention.^[10]

— Gavin Wood, A Note from Gavin Wood (July 29, 2026)

As of August 24, 2026, Wood said in his July 29 Parity note that he was Parity's chief executive, personally leading the technical side of delivery and hardening proofs of concept into open-source software. Separately, his secondary biography reports that his 2025 focus was Polkadot itself, including a speaking tour. The first is Wood's own party-published status account, not an independent assessment of delivery; the second is secondary reporting.^[10][6]

The paradox of November 2017 resolves into a portfolio rather than a fall. One co-founder among Ethereum's several. The author of its formal specification and a developer of Solidity. The coiner of Web 3.0 and author of Polkadot's 2016 technical vision. Then, in 2025, the executive who resumed Parity's CEO role and said he had returned to deliver the architecture.^{[3][7][6][9][10]}