[Four Major Bitcoin Mining Pools Control Over 70% Hashrate] Odaily Planet Daily News: As of June 23, 2026, Foundry Digital, AntPool, ViaBTC, and F2Pool collectively control over 70% of the Bitcoin network's hashrate, accounting for approximately 31%, 18%, 13%, and 10%, respectively. Foundry Digital is a U.S.-based mining pool supported by Digital Currency Group, primarily catering to large institutions and publicly listed mining companies. D-Central provided a Nakamoto coefficient of 3 for the first half of 2026, indicating that only three mining pools are needed to surpass half of the block production. ViaBTC faced stricter regulatory scrutiny in 2026, leading some miners to shift to alternative pools such as EMCD.