7 entries
Peter Todd's very first post on BitcoinTalk, made one minute after registering under the username 'retep.' A single sentence offering to buy a Diaspora social network invite for $2 — notably in USD, not BTC, unlike other buyers in the thread who offered 0.5–2 BTC. Three days later, his second post would be a technical reply to Satoshi Nakamoto's description of transaction replacement.
Satoshi Nakamoto describes a possible design for transaction replacement — allowing a double-spend with a higher fee to replace the original transaction. This concept would later become known as Replace-by-Fee (RBF). Peter Todd replied to this post approximately 1.5 hours later.
Peter Todd proposed BIP 65, introducing the OP_CHECKLOCKTIMEVERIFY opcode that allows Bitcoin transaction outputs to remain unspendable until a specified future time. The proposal redefined the existing NOP2 opcode and was deployed as a soft fork, enabling use cases including escrow with delayed access, two-factor wallets, and payment channels.
BIP 125 formalized opt-in Replace-by-Fee (RBF), allowing Bitcoin transaction senders to signal that their unconfirmed transactions may be replaced by higher-fee versions. The concept traces directly to Satoshi Nakamoto's original transaction replacement mechanism described on BitcoinTalk in December 2010 — the same thread where Peter Todd made his second-ever forum post.
Peter Todd announced OpenTimestamps, an open-source infrastructure for creating cryptographic timestamps using the Bitcoin blockchain. The system can timestamp an unlimited number of documents in a single Bitcoin transaction through Merkle tree aggregation, providing free, scalable, trust-minimized proof that data existed at a specific point in time.
Peter Todd participated as one of six individuals in the Zcash trusted setup ceremony in October 2016, then published a detailed account criticizing the process. He conducted his computation while driving across British Columbia, shielded his laptop in a Faraday cage, and destroyed the hardware with a propane torch afterward — yet concluded the ceremony was fundamentally flawed because the deterministic builds were unaudited and collusion was unprovable.
HBO documentary 'Money Electric: The Bitcoin Mystery,' directed by Cullen Hoback, names Peter Todd as a Satoshi Nakamoto candidate. The film's central evidence was a 2010 BitcoinTalk forum post where Todd replied to Satoshi's description of Replace-by-Fee, and Todd's later formalization of RBF in BIP 125. Todd denied the claim, calling it 'ludicrous.' The documentary was widely criticized by the Bitcoin community.