Bitcoin Archive

Satoshi Nakamoto

Pseudonymous individual or group who authored the Bitcoin white paper (October 31, 2008), created the Bitcoin software, mined the genesis block (January 3, 2009), and guided the project's early development before disappearing in April 2011. Their true identity remains unknown.

Satoshi Nakamoto is the pseudonym used by the individual or group who created Bitcoin. Their true identity has never been confirmed.

White Paper: On August 20, 2008, Satoshi emailed Adam Back about a new electronic cash system, marking the earliest known communication about what would become Bitcoin. On October 31, 2008, Satoshi published “Bitcoin: A Peer-to-Peer Electronic Cash System” to the cryptography mailing list at metzdowd.com. The paper described a decentralized digital currency system using proof-of-work to achieve consensus without a trusted third party.

Launch: On January 3, 2009, Satoshi mined the genesis block (Block 0), embedding the text “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” from the front page of The Times newspaper. On January 8, 2009, Bitcoin v0.1 was released publicly. On January 12, 2009, Satoshi sent 10 BTC to Hal Finney in Block 170 — the first person-to-person Bitcoin transaction.

Development and Communication: Satoshi was active across multiple platforms: the cryptography mailing list, the bitcoin-list mailing list on SourceForge, the BitcoinTalk forum (which Satoshi and Martti Malmi created), the P2P Foundation forum, and private email correspondence. Satoshi communicated directly with Adam Back, Wei Dai, Hal Finney, James A. Donald, Ray Dillinger, Dustin Trammell, Martti Malmi, Mike Hearn, Gavin Andresen, Laszlo Hanyecz, Jeff Garzik, and others. Over the course of 2009–2010, Satoshi authored hundreds of forum posts and emails explaining Bitcoin’s design, responding to technical questions, and coordinating development.

Transition and Disappearance: In late 2010, Satoshi began transferring project responsibilities to other developers. Gavin Andresen was granted commit access to the Bitcoin repository and the network alert key. Satoshi’s final known public post on BitcoinTalk was on December 12, 2010. In private email, Satoshi continued communicating with a small number of developers into early 2011. On April 23, 2011, Satoshi wrote to Mike Hearn: “I’ve moved on to other things. It’s in good hands with Gavin and everyone.” On April 26, 2011, Satoshi sent what is believed to be the final known email — to Gavin Andresen — handing over the alert key and writing: “I wish you wouldn’t keep talking about me as a mysterious shadowy figure.” No verified communication from Satoshi has been recorded since.

Profile: Satoshi’s P2P Foundation profile listed a date of birth of April 5, 1975, and a location of Japan. These details are unverified and widely considered to be fictitious. Satoshi wrote in fluent English with conventions consistent with British or Commonwealth usage. Analysis of posting timestamps has suggested various time zones, but no conclusive determination of location has been made.

Bitcoin Holdings: Research by blockchain analysts has identified a pattern of early mining activity attributed to a single entity, often called the “Patoshi” pattern, believed to be Satoshi. The bitcoins mined during this period — estimated at approximately 1.1 million BTC — have never been moved.

Related Entries

356 entries

Aftermath

Sergio Demian Lerner identifies the 'Patoshi' mining pattern — ~1 million BTC linked to Satoshi

Sergio Demian Lerner ↔ Satoshi Nakamoto

Bitcoin researcher Sergio Demian Lerner published 'The Well Deserved Fortune of Satoshi Nakamoto,' identifying a distinctive mining pattern (later named 'Patoshi') in Bitcoin's earliest blocks. The analysis linked approximately 22,000 blocks (~1.1 million BTC) to a single miner presumed to be Satoshi Nakamoto. Virtually none of these coins have ever been spent.
Aftermath

Sergio Demian Lerner discovers a second fingerprint in Satoshi's mining — the nonce LSB pattern

Sergio Demian Lerner ↔ Satoshi Nakamoto

Five months after his initial ExtraNonce analysis, Lerner discovered that Satoshi's nonce values had a highly non-random least significant byte (LSB) distribution — restricted to values [0..9] and [19..58], approximately 50 out of 256 possible values. This second fingerprint, independent of ExtraNonce, proved Satoshi used custom mining software with parallelized nonce space partitioning.
Aftermath

Wei Dai's retrospective statements on Satoshi Nakamoto and b-money

Wei Dai ↔ Satoshi Nakamoto

Wei Dai's reflections on Satoshi Nakamoto and on why b-money was never implemented, from a LessWrong Q&A thread. Dai stated that Satoshi 'didn't even read my article before reinventing the idea himself,' and later explained that b-money 'wasn't a complete practical design yet' and that he had 'grown somewhat disillusioned with cryptoanarchy' by the time he finished writing it up.
Aftermath

Sergio Demian Lerner coins the term 'Patoshi' and updates estimate to ~22,000 blocks / ~1.1 million BTC

Sergio Demian Lerner ↔ Satoshi Nakamoto

Six years after his original analysis, Lerner published 'The Return of the Deniers and the Revenge of Patoshi,' coining the term 'Patoshi' (Pattern + Satoshi), updating his estimate to ~22,000 blocks / ~1.1 million BTC, and providing new evidence: zero timestamp inversions between Patoshi blocks versus 224 among non-Patoshi blocks, proving a single PC clock.
Aftermath

Previously unpublished Satoshi-Finney emails revealed

Michael Kapilkov ↔ Satoshi Nakamoto, Hal Finney, Fran Finney

CoinDesk published previously unpublished emails between Satoshi Nakamoto and Hal Finney, obtained from Hal's personal computer via his widow Fran Finney. The emails included Finney asking Satoshi about network scalability in November 2008, Satoshi personally notifying Finney of the v0.1 release on January 8, 2009, and a follow-up where Satoshi mentioned being unable to receive incoming connections.
Aftermath

PLOS ONE publishes peer-reviewed study confirming Patoshi mining anomalies across Bitcoin's first 18 months

Maria Oskarsdottir ↔ Jacky Mallett, Satoshi Nakamoto, Sergio Demian Lerner

Reykjavik University researchers publish the first peer-reviewed academic study of the Patoshi pattern in PLOS ONE. The paper identifies two distinct nonce anomalies — the 'P anomaly' (extended Patoshi) and the 'Z anomaly' (zerononce) — and crucially finds that the P anomaly appears in ALL of the first 64 blocks mined, including Block 12 which was previously classified as non-Patoshi by ExtraNonce analysis.
Aftermath

The alternative genesis block — Satoshi's pre-release test block from September 2008

SerHack ↔ Satoshi Nakamoto, Ray Dillinger, Hal Finney

SerHack published an analysis of a pre-release Bitcoin genesis block dated September 10, 2008 — discovered in source code Satoshi shared privately in November 2008. The test block had a completely different hash, trivially easy difficulty, and an initial block reward of 10,000 units. The September 10 date coincides with Lehman Brothers announcing $3.9 billion in losses.
Aftermath

COPA evidence reveals Nicholas Bohm's previously unpublished emails with Satoshi

Nicholas Bohm ↔ Satoshi Nakamoto

The COPA v Wright record revealed that Nicholas Bohm, previously known only for a public January 2009 bitcoin-list bug report, had also exchanged a series of private emails with Satoshi Nakamoto. The exhibits show direct troubleshooting about routing, port forwarding, unaccepted blocks, and network isolation, including Satoshi's remark that there might have been almost nobody else running Bitcoin in July 2009.
Aftermath

Michel Bauwens reflects on Satoshi, Bitcoin, and the path not taken

Michel Bauwens ↔ Satoshi Nakamoto

In an April 2025 interview, P2P Foundation founder Michel Bauwens recalled that Satoshi emailed him several times, offered him a few bitcoins, and explained why he was publishing the white paper on the P2P Foundation site. Bauwens also gave a mature retrospective on Bitcoin: he remained skeptical of its energy costs, but saw it as the first globally scalable, socially sovereign currency not issued by a firm or state.