Bitcoin Institute

Gavin Andresen (1966–)

Bitcoin's lead maintainer after Satoshi's departure

Figures

Illustration with a faucet dispensing coin symbols above small faceless silhouette figures, two faceless silhouettes linked by repository and alert-key icons on a timeline, and a baton passed between two more silhouettes along a bar spanning 2010 to 2014.

In December 2010, Satoshi Nakamoto handed Gavin Andresen the keys to Bitcoin — source-repository access on December 12, the network alert key on April 26, 2011.

In his same-day reply to that alert-key email, Andresen disclosed that he had been invited to present Bitcoin at CIA headquarters in Langley. No reply from Satoshi is known after that message. Andresen gave the talk on June 14, 2011.

Gavin Andresen (born Gavin Bell in 1966 in Melbourne, Australia) grew up in the United States, earned a degree in Computer Science from Princeton University in 1988, and founded Wasabi Software, a 3D graphics company. He encountered Bitcoin in 2010 and quickly became one of the most active contributors, creating the Bitcoin Faucet — a website that gave away free bitcoins to help people learn the technology. He served as Bitcoin’s lead maintainer from December 2010 to April 2014.

2010Bitcoin Faucet launched- one of the earliestadoption tools (Jun)Satoshi's first privatewithdrawal signal (Sep)Handover - SVN access+ public lead-maintainerannouncement (Dec)2011Satoshi's last privateemail - CAlert keytransfer (Apr)CIA / In-Q-Telconference, afterSatoshi went silent(Jun)2012Bitcoin Foundationco-founded; Andresenas Chief Scientist (Sep)2014Steps down as leadmaintainer, role passesto Wladimir van derLaan (Apr)2016States belief that CraigWright is Satoshi;Bitcoin Core commitaccess revoked (May)2023Acknowledges trustingWright was "a mistake"(Feb)

Satoshi’s successor — handover in stages (2010–2011)

The handover from Satoshi to Andresen was not a single appointment but a gradual transfer of operational authority over seven months, recorded across the following archive entries:

DateEventScope
2010-09-01Private notice to Andresen: “working on other projects”Earliest documented withdrawal signal
2010-12-03Email to Malmi recommending Gavin for development and management — the same email Martti Malmi’s own biography covers from the recipient’s side, citing Andresen as “technically much more Linux capable than me” — the single most-cited piece of evidence in the archive’s analysis of Satoshi’s own Windows-only development environmentRecommendation
2010-12-12 morningSVN access handover and endorsement emailCodebase + private leadership endorsement
2010-12-12 18:22 UTCFinal BitcoinTalk forum postLast public communication
2010-12-19Public announcement: “With Satoshi’s blessing…”Public acceptance of role; same day Andresen creates the bitcoin/bitcoin GitHub repository
2011-04-23Email to Mike Hearn: “It’s in good hands with Gavin”Departure statement endorsing Andresen (private email; published later)
2011-04-26 10:29 UTCLast known private email: CAlert key transferNetwork emergency-shutdown authority

What did not transfer with the role: the ~1.1 million BTC attributed to Patoshi mining patterns (almost all of it unmoved since it was mined), the Satoshi identity itself, and the genesis-block coinbase address private keys.

Andresen recalled the gradual nature of this transition in a 2016 retrospective:

“Eventually, he pulled a fast one on me because he asked me if it’d be OK if he put my email address on the Bitcoin homepage, and I said yes, not realizing that when he put my email address there, he’d take his away. … Satoshi started stepping back as leader of project and pushing me forward as the leader of the project.”

Lead Maintainer (December 2010 – April 2014)

Andresen’s December 19, 2010 announcement opened with:

“With Satoshi’s blessing, and with great reluctance, I’m going to start doing more active project management for bitcoin.”

Andresen led Bitcoin development openly from that point, while Satoshi continued private correspondence into early 2011. Satoshi’s April 23, 2011 email to Mike Hearn — a private message at the time, published later — carried the departure line:

“I’ve moved on to other things. It’s in good hands with Gavin and everyone.”

Three days later, the last known private email — one half of what the archive collects as Satoshi’s final known correspondence — accompanied the formal CAlert key transfer:

“I wish you wouldn’t keep talking about me as a mysterious shadowy figure.”

Andresen later became the Chief Scientist of the Bitcoin Foundation when it was established in September 2012.

CIA Visit

On June 14, 2011, Andresen presented Bitcoin at CIA headquarters in Langley, Virginia, as part of an In-Q-Tel conference on emerging technologies. He posted to Twitter that evening:

Quote from: Gavin Andresen on June 14, 2011, 11:55:33 PM UTC

“My talk at the CIA went well today. The hallways there are REALLY wide, and full of interesting stuff.”

Andresen had disclosed the invitation in his April 26 reply to Satoshi’s alert-key email, seven weeks before the talk; no reply from Satoshi is known after that message.

Later Years

On April 8, 2014, Andresen stepped down as lead maintainer, passing the role to Wladimir van der Laan. He continued to contribute to Bitcoin development and advocated for increasing the block size limit to improve transaction capacity — a Large-blocker faction lead in the 2015–2017 block-size war that followed.

In May 2016, Andresen publicly stated he believed Craig Wright was Satoshi Nakamoto, based on a private cryptographic demonstration Wright had given him in London. Bitcoin Core developers, suspecting his GitHub account had been compromised, revoked his commit access to the bitcoin/bitcoin repository on May 2, 2016. Andresen confirmed days later at the Consensus 2016 conference that he had not been hacked and stood by his belief, but the access was never restored. Wright’s cryptographic “proof” was shown within hours to be a reused 2009 transaction signature rather than a fresh signing.

In February 2023, after a UK Court of Appeal ruling revived a lawsuit Wright’s company, Tulip Trading Limited, had brought against a group of Bitcoin developers, Andresen added a note to that original 2016 post acknowledging his mistake:

Quote from: Gavin Andresen on May 02, 2016

“I now know it was a mistake to trust Craig Wright as much as I did.”

He said he was done playing the “who is Satoshi” game.

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