600 BTC Mined in 2010 Moves After 16 Years of Dormancy

Bitcoin mined in 2010 moved from long-dormant addresses after more than 16 years, reigniting speculation over a possible link to Satoshi Nakamoto.

Twelve addresses holding a combined 600 Bitcoin (BTC), worth about $48 million, moved the coins on Saturday after more than 16 years of dormancy, according to onchain data reviewed by Cointelegraph.

Whale Alert, a blockchain transaction tracking platform, said the 600 BTC came from rewards mined across 12 Bitcoin blocks and that its research found no connection to Nakamoto.

“None of the blocks can be connected to Satoshi based on our research,” a spokesperson for Whale Alert told Cointelegraph, tempering speculation around the origins of coins mined while Bitcoin’s pseudonymous creator was still active.

Whale Alert traces all 12 mining block rewards

Whale Alert traced all 12 rewards to Bitcoin blocks mined in March 2010, when each block paid a 50 BTC block subsidy. The subsidy has since been cut in half four times, most recently in April 2024, when it fell from 6.25 BTC to the current 3.125 BTC per block.

The findings expand on Whale Alert’s earlier analysis of seven of the rewards. It said in an X post on Sunday that those seven originated from blocks it had determined were not mined by Nakamoto.

The mining blocks and addresses for the 12 dormant Bitcoin rewards. Source: Whale Alert

Lookonchain, an onchain analytics platform, had also initially identified seven miner wallets that moved 350 BTC after 16.5 years of inactivity, saying the wallets earned the coins through mining in March 2010.

Satoshi-era doesn’t mean Satoshi’s Bitcoin

The movement attracted attention partly because the coins date to a period when Nakamoto was still actively involved with Bitcoin.

Nakamoto remained involved in Bitcoin development and communications through 2010 before gradually withdrawing from the project, with their last known communication dating to April 2011.

One of the 12 addresses received a 50 BTC mining reward on March 5, 2010, and moved the coins to a new address on Sept. 5, 2026. Source: Blockchain.com

Whale Alert noted that one reward moved several blocks before most of the others, saying the pattern was consistent with a test transaction before the remaining transfers.

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