Wiki / People / Peter Todd

Peter Todd

🎙 Bitcoin Takeover guest · 6 episodes
From the Bitcoin Takeover Wiki · ✓ 12 sources · 6 podcast anchors · built 2026-11-13

Bitcoin developer behind CHECKLOCKTIMEVERIFY and replace-by-fee, a Hong Kong Roundtable signer and a SegWit2x opponent.

◆ Takeover vieweditorial · opinion, labelled

The wiki's angle: Todd is a useful corrective to camp labels. He signed the Hong Kong statement that promised a hard fork, then opposed SegWit2x, and later wrote the most detailed critique of drivechains.[3][4][6]

Contents

  1. Protocol work
  2. Block size war
  3. Other work
  4. On Bitcoin Takeover
  5. References

Protocol work

Peter Todd is the author of BIP-65, which added OP_CHECKLOCKTIMEVERIFY to Bitcoin[1]. He co-authored BIP-125, opt-in full replace-by-fee signalling, with David A. Harding[2].

Block size war

He signed the February 2016 Hong Kong Roundtable statement as a Bitcoin Core contributor[3]. Fork Wars records that in July 2017 he publicly noted his lack of support for SegWit2x[4].

Other work

Todd wrote about his role in the 2016 Zcash trusted setup ceremony[5]. In 2023 he published “Drivechains: A Detailed Analysis”[6].

On Bitcoin Takeover

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

References

  1. primaryBIP-65 (OP_CHECKLOCKTIMEVERIFY), author Peter Todd [archived]
  2. primaryBIP-125 (Opt-in Full Replace-by-Fee Signaling), authors David A. Harding and Peter Todd [archived]
  3. primaryBitcoin Roundtable, “Bitcoin Roundtable Consensus”, Medium, 20 Feb 2016 (Wayback Machine copy)
  4. btkFork Wars: the block size war timeline (Bitcoin Takeover) [archived]
  5. primaryPeter Todd, “Cypherpunk Desert Bus: My Role In The 2016 Zcash Trusted Setup Ceremony” [archived]
  6. secondaryPeter Todd, “Drivechains: A Detailed Analysis” (2023) [archived]
  7. episodeS17 E47: Tabconf 8 Livestream with Kevin Loaec, Ekrem Bal, Spaces Protocol & The Bitcoin Pivot (Bonus: Peter Todd) [archived]
  8. episodeS15 E46: Peter Todd on Bitcoin Covenants, Tail Emission, OpenTimestamps & Why Lightning Rocks [archived]
  9. episodeS14 E4: Peter Todd vs Sergej Korliar on Full RBF [archived]
  10. episodeS11 E11: Peter Todd on Bitcoin Inflation, Lightning & Privacy [archived]
  11. episodeS6 E9: Jonas Nick, Peter Todd & Alekos Filini on Bitcoin Development [archived]
  12. episodeS4 E7: Peter Todd on Hardware Wallets, Security & ProofMarshall [archived]

Related

Drivechains (BIP-300/301)
Sidechains whose two-way peg is secured by miners (BIP-300) with blind merged mining (BIP-301).
Hong Kong Roundtable
The February 2016 meeting where miners and some Core contributors agreed SegWit first, then a roughly 2 MB har
SegWit2x
The planned 2 MB hard fork that was meant to follow SegWit under the New York Agreement, suspended a week befo
Zcash
The 2016 shielded-payments chain built on the Zerocash research — “the privacy upgrade Bitcoin never accepted”
Categories: People
Ask about this article: >_ terminal · Onion mirror: http://btctkvroa6xsq25wmpvvlpkcgss7724zk6fm765fvtuunfgxw74j2pyd.onion/wiki/peter-todd/
>_ ask the wiki