Bitcoin Development and Cryptography by Peter Todd
Peter Todd is a cryptographic engineer and one of Bitcoin’s earliest and most active developers. Since 2012, he has contributed extensively to Bitcoin Core, worked with Coinkite, and developed OpenTimestamps—a decentralized timestamping protocol now deployed in several blockchain compliance tools. Todd also participated in the original trusted setup for Zcash and has published multiple whitepapers on proof-of-work mechanics and network security assumptions.
In 2024, the HBO documentary Money Electric inaccurately named Todd as a potential Satoshi Nakamoto figure. The segment sparked widespread speculation but was publicly dismissed by Todd, who described the attribution as unfounded. The episode spurred over 500,000 new searches of his name and prompted him to restrict public speaking engagements, though he resumed conference participation in Q2 2025, speaking on consensus evolution at the Incrypted Forum and Bitcoin Lugano.
Todd’s continued contributions—spanning from OP_RETURN optimization to RBF protocol discussions—ensure that Bitcoin’s protocol layer retains a focus on security and decentralization fidelity.
Delaying BIP-110 enforcement may enhance replay protection, Peter Todd notes
Peter Todd discusses the challenges associated with replay protection during the mandatory signalling period for BIP-110, a Bitcoin Improvement Proposal. He suggests that signaling support for ...
Peter Todd: Satoshi white paper contains a subtle error about cryptocurrency fundamentals
Peter Todd points out that a key point made in Satoshi's original white paper on cryptocurrency is actually subtly incorrect. According to Todd, this serves as a reminder that Satoshi was a ...
Observes consensus themed btc++ edition gift, Peter Todd notes
Peter Todd humorously comments on receiving a consensus-themed btc++ edition gift from individuals identified as niftynei and isabelfoxenduke. The statement suggests a lighthearted take on ...
Peter Todd: Wallets may incorrectly treat assets as euros
Peter Todd describes how sending certain assets to a fresh wallet—even one that has not enabled assets—results in the wallet displaying them as if they are genuine euros. According to Peter ...
Lightning is decentralized with limited monetary push, Peter Todd notes
Peter Todd comments that the Lightning network is in an advantageous position due to its decentralized nature. However, he points out that this decentralization means there are no individuals with ...
Peter Todd: UAH 1000 banknote equals $22.50 and calls for larger denominations
Peter Todd highlights that the 1000UAH banknote is currently valued at $22.50 USD. He suggests that the introduction of 5000UAH and 10000UAH notes would be beneficial. Todd also comments that ...
BTC++ Toronto event generates excitement among speakers, Peter Todd notes
Peter Todd expresses enthusiasm about participating in the upcoming BTC++ conference in Toronto. He also notes that another speaker, described as being very excited, will be joining to share ...
Peter Todd: BIS focus on stablecoin privacy as bank positions become visible
Peter Todd draws attention to the Bank for International Settlements' (BIS) increasing concerns over stablecoin privacy, as the transparency of blockchain ledgers exposes banks' specific positions ...
Binance non-compliance and USDT issues flagged, Peter Todd argues
Peter Todd criticizes the European Union's MiCA regulatory framework and points out that the compliance issue does not only affect anonymous cryptocurrencies but also USDT, which has reportedly ...
Peter Todd: Bitcoin market cap compared to $1.3 trillion in U.S. savings
Peter Todd draws a comparison between Bitcoin's market cap and the aggregate life savings of 150 million median Americans, estimating the cryptocurrency's market capitalization at $1.3 trillion. ...
No current alternative rivals Bitcoin for secure data storage, Peter Todd notes
Peter Todd highlights that Bitcoin functions as an extremely expensive data storage layer. According to Todd, this significant cost does not diminish its value, especially for those willing to ...
Peter Todd: UI challenges for Bitcoin wallets in handling merchant payments
Peter Todd highlights a user interface issue for Bitcoin wallets. He points out that there is currently no good way to replicate certain UI flows, especially with Lightning or similar solutions, ...
Lightning payments offer smoother transactions than credit cards, Peter Todd notes
Peter Todd, industry influencer, shared his recent experience attempting to purchase BattleBots tickets, noting difficulties using Ticketmaster. He explained that credit cards and PayPal both ...
Peter Todd: Satoshi-era coins described in P2PK context
Peter Todd, industry influencer, highlights a discussion from Mike Casey, who referred to well-known P2PK coins as 'Satoshi-era coins' instead of attributing them directly to Satoshi. This ...
Bitcoin Core relies on multiple layers of technology, Alex notes
Alex, industry influencer, draws attention to the intricate dependencies involved in Bitcoin Core, noting the vital role played by libraries such as secp256k1, various hash functions, networking ...
Peter Todd: Bitcoin relies on freedom to run code, risks as restrictions increase
Developer Peter Todd has emphasized that Bitcoin's functioning depends on the freedom to run code. In a recent lecture and Q&A for a University of Toronto class, he explained that without the ...
Bitcoin should remain accessible for practical use, Peter Todd argues
Peter Todd addressed the notion that Bitcoin should not be treated as a currency too sanctified for actual use. In his remarks, Todd mentioned that it is not a coincidence that a developer known ...
Peter Todd: Avoiding AML and KYC remains possible with Bitrefill
Peter Todd commented on the importance of avoiding anti-money laundering (AML) and know your customer (KYC) requirements. He highlighted that Bitrefill continues to offer services without ...
Peter Todd argues Discord can embrace Bitcoin despite international pressure
Peter Todd contends that Discord is not obligated to comply with regional regulations imposed by countries like the UK and Australia. He suggests that Discord, being a global internet platform, ...
Peter Todd flags Rootstock as harmful to Bitcoin
Peter Todd criticized Rootstock, calling it a scam from the start. He pointed out their merge-mining plans as harmful to Bitcoin itself. Todd's commentary highlights the perceived risk the ...
Peter Todd scrutinizes Netherlands unrealized gains tax proposal
Peter Todd has raised concerns over the Netherlands' plans to impose taxes on unrealized gains. He highlighted the proposal's impact on cooperative shares, such as those in employee-owned ...
