Note · Bitcoin and crypto
Who created Bitcoin? Satoshi Nakamoto and how it began
Bitcoin was created by someone using the name Satoshi Nakamoto, who published its design in 2008, launched it in 2009 and vanished in 2011. Who that is remains unknown.
This note and the comments marked the Graphite mark are Graphite’s: an AI model, Claude Opus 5.5, wrote them on 4 November 2026, following Graphite’s own instructions, from the sources at the note’s end, and checked them against those sources. Check them as you would anyone’s.
This note and its comments are written by an AI model.
Contents · 6 sections
Bitcoin was created by a person or group using the name Satoshi Nakamoto. Nakamoto published Bitcoin's design on 31 October 2008, started the network on 3 January 2009, worked on it in public for about two years, and then stopped writing in 2011. The name is a pseudonym, and the real identity of whoever created Bitcoin has never been confirmed.
In short
- Satoshi Nakamoto is known only through writing: a nine-page paper, the first software, and hundreds of emails and forum posts from 2008 to 2011.
- The first block, mined on 3 January 2009, carries a newspaper headline about a second bank bailout, a timestamp that many read as a comment.
- Nakamoto handed the project to other developers and went silent in 2011; no claim to be Nakamoto has been proven.
How did Bitcoin begin?
It began with an email. At 14:10 Eastern time on 31 October 2008, Satoshi Nakamoto wrote to a cryptography mailing list: "I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party." The message linked to a nine-page paper, Bitcoin: A Peer-to-Peer Electronic Cash System, hosted on bitcoin.org, a domain registered that August.
The timing mattered to how the idea was received. The 2008 financial crisis was at its worst: Lehman Brothers had failed six weeks earlier, and governments were spending vast sums to rescue banks. The paper never mentions the crisis, but it proposed money that needed no bank, at a moment when trust in banks was low.
Many on the list were skeptical. Digital cash had been tried before, by cryptographers in the 1990s, and the schemes had either needed a central company or failed to solve double spending, the problem of stopping someone from copying a digital coin and spending it twice. Nakamoto's answer was a public record kept by everyone, with new entries secured by computing work: the design now called a blockchain.
What happened in Bitcoin's first years?
The history is unusually well recorded, because nearly all of it happened in public, on mailing lists, forums and the blockchain itself.
| Date | What happened |
|---|---|
| 18 August 2008 | The domain bitcoin.org is registered |
| 31 October 2008 | Nakamoto sends the white paper to a cryptography mailing list |
| 3 January 2009 | Nakamoto mines the first block, the genesis block |
| 8 January 2009 | Nakamoto announces version 0.1 of the Bitcoin software |
| 12 January 2009 | The first payment: 10 bitcoin from Nakamoto to the cryptographer Hal Finney |
| 22 May 2010 | A programmer in Florida pays 10,000 bitcoin for two pizzas, the first known purchase of goods |
| 12 December 2010 | Nakamoto's last public forum post |
| April 2011 | Nakamoto's last known emails to other developers |
The genesis block holds a line of text that has nothing to do with payments: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks", the front-page headline of the London newspaper that day. It proves the block wasn't made before that date. Many read it as a statement of why Bitcoin was built, though Nakamoto never explained it. The 50 bitcoin reward in that block can't be spent, a quirk of the code.
Hal Finney, who received that first payment, was one of the first people to run the software. He later wrote that he had mined early blocks on his own computer; he died in 2014. The pizza buyer, Laszlo Hanyecz, posted his offer on a forum on 17 May 2010 and reported the trade five days later. Bitcoin users mark 22 May as Bitcoin Pizza Day.
What is known about Satoshi Nakamoto?
Only what the writing shows. Nakamoto wrote fluent English, sometimes with British spellings such as "colour". A profile on one website said Nakamoto was a man living in Japan, but nothing else supports it, and the name could belong to one person or several. Nakamoto's emails and posts, collected by the Satoshi Nakamoto Institute, show someone with deep knowledge of cryptography and programming, who appears to have written the first version of the software alone.
Nakamoto also mined a great deal in the first year, when few others were. Analyses of the earliest blocks estimate that one early miner, widely assumed to be Nakamoto, mined around 1 million bitcoin, and almost none of those coins have ever moved. Any transfer from them would be watched closely, which is one reason any claim to be Nakamoto is tested against them: whoever made those coins could prove it by moving one, or by signing a message with their keys.
Why did Satoshi Nakamoto disappear?
Nakamoto never said. During 2010, Nakamoto handed more of the work to other developers, especially Gavin Andresen, and gave the volunteers maintaining it control of the code. The last public forum post came on 12 December 2010. In April 2011, in one of the last known emails, Nakamoto told a developer they had "moved on to other things". Nothing confirmed as Nakamoto's has appeared since.
The disappearance arguably helped Bitcoin. With its creator gone, no single person could be pressured, sued or arrested to change it, and no founder's word settled disputes. The rules, including the fixed supply and the halving of new coins every four years, stayed in the software, where anyone could read them.
Has anyone proved they are Satoshi Nakamoto?
No. Journalists, filmmakers and researchers have named many candidates over the years, and some people have claimed the title themselves. None has produced the proof that would settle it: a message signed with one of Nakamoto's early keys or a transfer from Nakamoto's coins. The candidates named by others have mostly denied it.
One claim went to court. In March 2024, at the end of a trial brought by a group of cryptocurrency companies, the High Court in London ruled that an Australian computer scientist who had claimed for years to be Nakamoto was not. Its written judgment, handed down on 20 May 2024, called the evidence against his claim overwhelming and found that he did not write the white paper or create Bitcoin.
Still argued
Whether Nakamoto is one person or a small group, and whether that person is alive, are open questions with no evidence that settles them. Everything said about Nakamoto beyond the written record is speculation, and this note doesn't add to it.
To see how the design works today, read what Bitcoin is and how it works.
Check yourself
- Without looking back: what problem did Nakamoto's design solve that earlier digital cash couldn't?
- What does the headline in the genesis block prove, and what is only read into it?
- What evidence would actually show that someone is Satoshi Nakamoto?
Sources
- Bitcoin P2P e-cash paper — Satoshi Nakamoto, The Cryptography Mailing List, 31 October 2008
- Bitcoin: A Peer-to-Peer Electronic Cash System — Satoshi Nakamoto, 2008
- Genesis block — Bitcoin Wiki
- Laszlo Hanyecz — Bitcoin Wiki
- The complete Satoshi — Satoshi Nakamoto Institute
- Crypto Open Patent Alliance v Wright, judgment — High Court of England and Wales, 20 May 2024