The Bitcoin network hashrate hit a record high in October, JPMorgan (JPM) said in a report on Monday. The monthly average network hashrate rose 5% to 1,082 exahashes per second (EH/s), the report said. The hashrate refers to the total combined computational power used to mine and process transactions on a proof-of-work blockchain, and is a proxy for competition in the industry and mining difficulty. At the end of last month, "mining difficulty was 3% higher than the end of September, and 80% higher than ...