The people who built Bitcoin

The pseudonymous inventor who solved double-spending.

"Running bitcoin."

Designed Bit Gold, the closest precursor to Bitcoin.

Inherited Bitcoin's reference client from Satoshi.

Proposed b-money, cited in the Bitcoin white paper.

Created Hashcash — Bitcoin's proof-of-work.

Satoshi's first collaborator on the code and the website.

Paid 10,000 BTC for two pizzas.

Their hash-chained timestamps are cited in the white paper.

His hash trees structure every Bitcoin block.

Pioneered digital cash and blind signatures.

First proposed making computation a cost — in 1992.

Invented pooled mining; later built the first hardware wallet.

Built the first Bitcoin GPU mining farm.

Wrote The Crypto Anarchist Manifesto.

Proved a single miner — likely Satoshi — mined ~1.1M BTC.

Put strong encryption in ordinary hands.

One of the few who reviewed Bitcoin before the world saw it.

Gave Bitcoin its first price in dollars.

Wrote A Cypherpunk's Manifesto.

Built Bitcoin's first dominant exchange.

Ran the marketplace that gave Bitcoin its first real demand.

Exchanged emails with Satoshi about Bitcoin's future.

Co-founded the Cypherpunks and the EFF.

Author of much of modern Bitcoin's cryptography.

Built the first Bitcoin exchange.

Sent the first reply to Satoshi's announcement.

His banking blockade became Bitcoin's first stress test.

Sharpened Bitcoin's cryptography and its limits.

One of the first contributors to Bitcoin Core.

Maintained the remailers that made anonymity practical.

Ran the exchange whose failure shook early Bitcoin.

Kept the archives of early Bitcoin online.

“Bitcoin Jesus” — an early, relentless promoter.

Among the first to run and discuss Bitcoin with Satoshi.

Built one of the first ways to buy Bitcoin easily.

A 2014 magazine wrongly named him Bitcoin's creator.

Claimed to be Satoshi; a UK court ruled he is not.