Wiki / People / Bob Summerwill

Bob Summerwill

🎙 Bitcoin Takeover guest · 1 episode
From the Bitcoin Takeover Wiki · ✓ 8 sources · 6 podcast anchors · built 2026-11-13

Former Ethereum Foundation C++ developer and Executive Director of the ETC Cooperative (2019–2024); a 2026 Bitcoin Takeover guest on Ethereum Classic and Bitcoin forks.

◆ Takeover vieweditorial · opinion, labelled

Guest on S17 E42 in September 2026, where he retold the DAO fork from inside the Ethereum Foundation and described the BIP-110 chain grinding to a halt.[4][6]

Contents

  1. Career
  2. On Bitcoin Takeover
  3. On Bitcoin Takeover
  4. References

Career

Summerwill's site says he spent fifteen years at Electronic Arts, then was a “core developer on the Ethereum Foundation's C++ client”, co-lead architect at the launch of the Enterprise Ethereum Alliance and “Executive Director of the ETC Cooperative from 2019 to 2024”[1]. It says he organised the Proof of Work Summit conferences in 2023 and 2024 and runs The Early Days of Ethereum history project[1]. His GitHub profile gives Vancouver, BC[2].

On Bitcoin Takeover

On S17 E42 he said his ETC Cooperative role “started at the beginning of 2019”, while he had been “a frontline witness” to the 2016 fork[3]. He said he was working for the Ethereum Foundation then, “on the C++ client, which Gavin Wood had started”[4]. He described Ethereum Classic's ethos as “Bitcoin philosophy, Ethereum technology”[5], and discussed BIP-110 and the chain that stalled after it[6][7].

On Bitcoin Takeover

Episodes with Bob Summerwill as a guest, from the show's feed (bitcoin-takeover.com/audio/feed.xml).

References

  1. primaryBob Summerwill, “About Bob”, bobsummerwill.com (read 13 Nov 2026) [archived]
  2. primaryGitHub profile bobsummerwill (Bob Summerwill) [archived]
  3. episodeS17 E42: Bob Summerwill — the ETC Cooperative role began in early 2019▶ listen at 1:56timestamp transcript-derived, pending a listen [archived]
  4. episodeS17 E42: Bob Summerwill — at the Ethereum Foundation on the C++ client in 2016▶ listen at 3:07timestamp transcript-derived, pending a listen [archived]
  5. episodeS17 E42: Bob Summerwill — “Bitcoin philosophy, Ethereum technology”▶ listen at 46:08timestamp transcript-derived, pending a listen [archived]
  6. episodeS17 E42: Bob Summerwill — the BIP-110 chain ground to a halt▶ listen at 38:26timestamp transcript-derived, pending a listen [archived]
  7. episodeS17 E42: Bob Summerwill on BIP-110 and data-carrying▶ listen at 1:03:10timestamp transcript-derived, pending a listen [archived]
  8. episodeS17 E42: Bob Summerwill on Ethereum Classic & Bitcoin's Fork Season [archived]

Related

Ethereum Classic (comparison — not a Bitcoin fork)
Not a Bitcoin fork: the original Ethereum chain that kept running when the Ethereum Foundation's July 2016 har
BIP-110 (Reduced Data Temporary Softfork)
The 2025 proposal for a one-year soft fork limiting data fields, with a 55% threshold and mandatory signalling
Jameson Lopp
Co-founder and Chief Security Officer of Casa, writer of Cypherpunk Cogitations, and a speaker at events acros
Bitcoin BLAKE2b (XBT / BTCB2)
The 2026 fork that grew out of Luke Dashjr's BIP-110 anti-spam soft fork and replaced SHA-256d with BLAKE2b. S
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