Bitcoin Mining Profitability Hits Record Low as Network Hashrate Reaches 1.16 ZH/s

Bitcoin miners face unprecedented profitability challenges as network computing power reached 1.16 zettahashes per second in autumn 2025. Bitcoin prices slipped into the low $80,000 range at the start of November, creating a sharp disconnect between rising operational demands and declining revenue per unit of hashrate. ASIC hardware payback periods have stretched beyond 1,200 days—the longest repayment cycle the industry has recorded, according to The Miner Mag data.