2 October 2025
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Bitcoin Mining Difficulty Reaches Record 150.84 Trillion
- Bitcoin's mining difficulty increased by 5% to a record 150.84 trillion, marking the seventh consecutive rise.
- The difficulty adjusts every 2016 blocks (approximately two weeks) to maintain an average block time of about 10 minutes.
- The network’s hash rate now exceeds one zettahash, reaching 1.05 ZH/s, indicating more machines are securing the network, enhancing security but increasing profitability challenges.
- Miner revenue per hashrate unit (hashprice) fell below $50 per petahash per second, as reported by Luxor.
- Hashprice peaked at $52 when Bitcoin traded above $118,000 earlier this summer but has declined due to rising difficulty and softer prices.
- For miner margins to improve, changes in higher fees, bitcoin price rebound, or a slowdown in network hash rate are needed.
- Despite challenges, mining stocks have risen with Bitcoin's surge above $118,500, with Cipher Mining up 51%, Bit Digital gaining 25%, and Marathon Digital climbing nearly 16%.