Blockchain.com data show 2025 has been a year of mounting pressure for Bitcoin miners, as network Difficulty climbed sharply alongside a surge in mining power. Over the course of the year, miners expanded capacity aggressively. The 7‑day average network Hashrate rose from 795.7 terahashes per second (TH/s) on January 1 to roughly 1,070.3 TH/s today — a gain of about 34.5%. The Hashrate set several new highs during the run, peaking at an all‑time high of 1,151.6 TH/s in October before easing back to current levels. Because most miner income comes from the fixed BTC block subsidy (outside halving events), miner economics are heavily tied to BTC’s market price. Historically, rising prices encourage investment in new rigs and facilities, which pushes Hashrate higher; conversely, price drawdowns can slow growth. This year’s Hashrate ATH arrived shortly after Bitcoin’s market top, and the subsequent fall in Hashrate has tracked the broader price pullback — though Hashrate remains notably up year‑to‑date even as BTC is down. Rising Hashrate has driven a parallel increase in Bitcoin’s Difficulty — the protocol parameter that adjusts roughly every two weeks to target Satoshi’s 10‑minute average block time. If miners produce blocks faster than the target, Difficulty increases just enough to restore the intended cadence; if blocks slow, Difficulty drops. As miners added capacity through 2025, the chain repeatedly raised Difficulty and set new records. Difficulty topped 155 trillion hashes in October and, after a pullback, sits around 148.2 trillion hashes — roughly a 35% increase from the 109.8 trillion level at the start of the year. Bottom line: miners expanded and the network got materially harder to mine on in 2025, reflecting sustained investment in hashing power even as Bitcoin’s price has cooled from its highs. BTC briefly reclaimed levels above $89,000 earlier in the year but is trading around $87,300 at present. Read more AI-generated news on: undefined/news

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