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.
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 ...
Peter Todd addresses misconceptions about Time creation
Peter Todd has clarified misconceptions surrounding his involvement with Time. During a recent conversation, Todd mentioned that a friend refused to believe his denial of creating Time, as well as ...
Peter Todd questions HRF's Navalny foundation board choice
Peter Todd raised concerns about the Human Rights Foundation's (HRF) decision to associate closely with the Navalny foundation. Todd highlighted that HRF appointed Navalny's wife to their board of ...
Peter Todd: Bitcoin raffle prize fuels interest in FPV drones
Peter Todd shared his enthusiasm for a raffle with a unique runner-up prize—an FPV pilot kit perfect for those eager to learn drone flying. He humorously noted his own need for such a kit and ...
Peter Todd faces crypto loss after Green Wallet disappointment
Peter Todd shared on social media his experience of losing a $150 crypto donation. After installing Green Wallet to receive donations in XCH, the funds were reportedly stolen. Todd further ...
Peter Todd highlights risks of Australia's social media ban on crypto discourse
Peter Todd has shared insights into how Australia's social media ban could hinder important discussions around cryptocurrencies. When he was just 15 years old, Todd was already engaging in ...
Peter Todd: El Salvador advances Bitcoin time-stamping technology
Peter Todd has highlighted El Salvador's innovative approach in pioneering the use of Bitcoin time-stamping using OpenTimestamps technology. This move prompts a broader question of why more ...
Peter Todd outlines Bitcoin-based data integrity solution
Peter Todd highlights a second layer protocol that enhances data integrity by utilizing Bitcoin. This approach combines git with OpenTimestamps to ensure robust data ...
Peter Todd criticizes EU's potential sting operations against Bitcoin
Peter Todd has raised concerns about the European Union's potential approach to Bitcoin regulation. He argues that sting operations to enforce compliance could severely damage retail acceptance ...
Peter Todd predicts Bitfinex may recreate Bitcoin split market
Peter Todd suggests the possibility of Bitfinex initiating a new market division like the historical Bitcoin block size war. He envisions a scenario where Bitcoin is split into Bitcoin and Knotz ...
