Bitcoin’s first non-coinbase transaction reached its tenth anniversary

On January 12, 2019, Bitcoin’s first non-coinbase transaction reached its tenth anniversary. The surviving chain record places transaction f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16 in block 170, whose timestamp is January 12, 2009 at 03:30:25 UTC. The transaction consumed one 50 BTC input, created outputs of 10 BTC and 40 BTC, paid no fee and occupied 275 bytes.

The ledger alone does not identify people. The attribution comes from Hal Finney, the cryptographer and early Bitcoin developer, who wrote in 2013 that he was the recipient and that Satoshi Nakamoto sent him ten coins as a test. Read together, Finney’s first-person account and the chain data establish the narrow historical claim: this was Bitcoin’s first recorded transfer between distinct users, rather than a coinbase transaction creating a miner subsidy.

From issuance to transfer

That distinction explains why January 12 matters. Bitcoin’s genesis block on January 3, 2009 began the chain, and subsequent coinbase transactions issued block rewards. The block 170 transfer demonstrated a different function: value already recorded on the ledger could move under the rules of the software from one participant’s control to another’s.

The test was tiny in operational terms. It involved two early users, no transaction fee and a network whose economic footprint was negligible. It did not prove mass adoption, price stability, legal status or scalability. What it did prove was more basic and more consequential: the published system could execute the kind of peer-to-peer transfer described by its design, and another participant could independently run the software and receive coins.

The record also shows why precision matters in Bitcoin history. Calling it the first “Bitcoin transaction” without qualification ignores the genesis coinbase and later block-reward transactions. “First non-coinbase transaction” is the technically supportable formulation. Calling the 10 BTC output a purchase would also overstate the evidence; Finney described it as a test, and the cited records do not document a sale or a dollar price.

A tenth anniversary in a bear market

The anniversary arrived under very different market conditions. Kraken’s January 12, 2019 daily report listed BTC at $3,637, down 0.73%, with $27.3 million traded in BTC across the exchange’s reported markets. Kraken reported $54.3 million traded across all markets that date, covering crypto and the listed fiat currencies EUR, USD, JPY, CAD and GBP.

Those are venue-specific figures, not a universal Bitcoin close or global volume. Crypto traded continuously, exchanges could print different prices, and the surviving report does not expose an exact snapshot time on the page. The data therefore describe Kraken’s January 12 report only. They cannot establish that the anniversary caused any price move.

The contrast was nevertheless instructive. A decade after a zero-fee 10 BTC software test, bitcoin was liquid enough to account for roughly half of the dollar-denominated volume Kraken reported across all markets: $27.3 million divided by $54.3 million is about 50.3%. That percentage is Coinburn’s calculation from Kraken’s figures, not a metric published by Kraken, and it should not be read as a measure of global market share.

What the anniversary established

Contemporaneous coverage on January 12, 2019 treated the milestone as the tenth anniversary of the first transfer between Nakamoto and Finney. The strongest evidence is narrower than the surrounding symbolism: a dated block, a specific transaction, two outputs and Finney’s later first-person identification of the 10 BTC test.

That record makes the anniversary consequential without turning it into a price thesis. Bitcoin had progressed from an experimental exchange between two cryptographers to an asset traded on professional venues, while its basic settlement history remained publicly auditable. The milestone documented continuity of the ledger and the transition from issuance to user-to-user transfer; it did not settle debates over valuation, regulation or adoption.