On January 20, 2024, the Bitcoin network recorded its first mining difficulty adjustment of the year at block height 826,560, with a 3.9% decrease. The difficulty dropped from 73.19 trillion to 70.34 trillion, making it slightly easier for miners to find valid block hashes over the next 2,016 blocks (roughly two weeks).
How Difficulty Adjustment Works
Bitcoin automatically adjusts its mining difficulty every 2,016 blocks to maintain an average block time of 10 minutes. This reduction provides relief to miners, especially smaller operators who have faced margin pressures in the current market. The next difficulty recalculation is expected around February 4, 2024.
Hashrate Drop: Texas Cold Snap Takes a Toll
Data shows that the network's total hashrate stood at approximately 497 EH/s as of 11:00 a.m. Eastern Time on Jan. 20, significantly below the seven-day simple moving average of 547 EH/s recorded five days earlier. This represents a decline of about 50 EH/s within a week. The primary culprit is the extreme cold snap sweeping across Texas, where mining companies have voluntarily curbed operations to ease pressure on the state's power grid. Texas is home to a large concentration of Bitcoin mining facilities, making its power consumption swings directly visible in global hashrate metrics.
Mining Pool Landscape: Foundry USA and Antpool Lead
Currently, roughly 51 mining pools or entities contribute to the Bitcoin network. Foundry USA commands the largest share with 139.89 EH/s (29.43%), followed by Antpool with 106.90 EH/s (22.49%). Other notable pools include F2pool, Viabtc, and Binance Pool. With the difficulty reduction, some miners may return online, potentially pushing the hashrate back up in the coming days.
In summary, this difficulty adjustment highlights Bitcoin's adaptive response to external shocks. Although the Texas cold snap has caused temporary disruption, historical patterns suggest that hashrate will recover swiftly once weather conditions normalize.