At 06:43 (UTC) on Sept. 15, 2022, Ethereum completed its merge at the block height of 15,537,393 and officially switched to the proof-of-stake consensus mechanism. From then on, Ethereum bid farewell to the seven-year proof-of-work (PoW) mining era. At the same time, Ethereum had officially hard forked from Ethereum, retaining the PoW consensus. As the …