Bitcoin miners had a modest September slump, watching revenue shrink 4.23%—that’s $69 million gone compared to August’s haul. September Slide for Bitcoin Mining Revenue At the time of publication, hashrateindex.com data shows the spot valuation of one petahash per second (PH/s) of SHA256 hashrate stands at $52.10—a modest decline from the $53.15 figure documented on […] Source: https://news.bitcoin.com/bitcoin-miners-revenue-fell-4-23-in-september-as-difficulty-hike-nears/