Bitcoin’s long‑dormant supply resurfaced in 2026, with on‑chain analytics showing more than 34,000 BTC that were originally acquired before 2019 moving back into circulation. Two independent data providers—Btcparser, which tracks activity from inactive addresses, and Checkonchain, which measures revived supply by acquisition date—both reported a surge in transactions from legacy wallets throughout the year. The activity spanned from early mining rewards dating back to 2010 to coordinated transfers of exactly 500 BTC from addresses created in 2016, highlighting both historical and potentially strategic movements among large holders.

BTC / USD
Source: CoinGecko. Prices are indicative.

Scale and Timing of Dormant‑Wallet Activity

Btcparser’s dataset, which monitors over 60,000 sleeping wallets, recorded 873 outbound movements between January and October 2026, moving roughly 33,932 BTC. The average daily outflow was about 112 BTC, though monthly volumes varied widely. The first quarter saw 8,837 BTC across 217 transfers, while the second quarter added 9,824 BTC. Activity peaked in the third quarter, especially in August, when 188 transfers moved 6,428 BTC (about 214 BTC per day). September followed with 5,419 BTC, and October’s 35 transfers accounted for 2,159 BTC, featuring the highest average transaction size of the year at 61.69 BTC. The data illustrate that a higher number of transfers does not always equate to larger volume, as some periods were dominated by a few massive sweeps while others consisted of many modest moves.

Early‑Era Mining Rewards Resurface

The most striking episode involved addresses created in 2010, when block rewards were 50 BTC. On Jan 10, 2026, 40 such addresses transferred a combined 2,020 BTC within a two‑minute span, each moving roughly the original 50 BTC reward. A second burst on Sept 5, 2026, saw 2010‑era wallets shift 600 BTC in an 11‑minute window. By the end of October, 2010‑originated wallets had moved about 2,840 BTC, while 2011 wallets contributed roughly 816 BTC. Although the balances match early mining subsidies, analysts caution that these movements do not confirm ownership by Satoshi Nakamoto or link to the Patoshi mining pattern.

Repeated 500‑BTC Transfers Suggest Coordination

Another notable pattern involved four wallets created on Jan 23, 2016, each sending exactly 500 BTC on March 24, May 19, July 2 and Oct 20, 2026. The four transactions together represent 2,000 BTC, or about 5.9 % of all dormant‑wallet activity recorded for the year. The regular spacing and identical amounts hint at a deliberate distribution schedule, though the data cannot definitively identify a common owner. Similar clusters were observed for wallets created in early 2014, where nine addresses moved a total of 837.25 BTC across three months, and five addresses each transferred 100 BTC on a single day in March.