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Michael Marquardt

theymos, BitcoinTalk administrator who inherited custody of the Satoshi-era record

Figures Event Added Updated
bitcointalkblock-size-warhistoricforumbitcoin-org

A browser address bar labeled "bitcoin.org/smf" arrows into one labeled "bitcointalk.org" beside a shield-and-checkmark icon, with a stack of preserved-document icons and two featureless silhouette figures connected by a key icon below.

Michael Marquardt, an American software developer known online by the handle theymos, is the BitcoinTalk forum administrator who inherited custody of the site from Satoshi and Martti Malmi during Satoshi’s gradual withdrawal from the project in late 2010 and early 2011.

Early Activity

Theymos made his first BitcoinTalk post on February 10, 2010, opening topic 48 “What’s with this odd generation?” — a question about an unexpected 50.44 BTC block reward that led to one of the earliest public explanations of the coinbase reward mechanism: subsidy plus collected transaction fees, appended to the coinbase.

Over the course of 2010 he accumulated dozens of posts helping new users with transaction fees, IRC bootstrapping, version upgrades, and general protocol questions. His replies were characteristically direct and precise, making him a de facto support channel for end-user issues on the forum.

Forum Administrator

Before Satoshi Nakamoto’s gradual withdrawal from the project in late 2010 and early 2011, Satoshi transferred administrative control of the Bitcoin Forum to theymos and Sirius (Martti Malmi). Theymos became the primary administrator.

On August 1, 2011, he completed the migration from bitcoin.org/smf to the independent domain bitcointalk.org, preserving all posts, threads, and user accounts.

Other Positions

Theymos is also a long-standing administrator of the Bitcoin Wiki (en.bitcoin.it), and later became a moderator of the r/Bitcoin subreddit. His tenure as r/Bitcoin moderator during the 2015–2017 block size debate — including the enforcement of moderation rules that restricted discussion of alternative implementations such as Bitcoin XT and Bitcoin Classic — made him one of the most publicly debated community figures of that period.

Significance

The same administrative authority that preserved the record also shaped what was later said about it. The 2011 migration kept every Satoshi-era post intact and publicly reachable; the 2015-2017 moderation on r/Bitcoin controlled which arguments about Bitcoin’s future could be aired in the same community he had helped keep continuous since 2010. This archive’s overview of the 2015-2017 block size war covers the moderation dispute in full; theymos is the throughline between the forum’s founding-era archive and its most contested later chapter.

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