ソース:[1] ETH breaks $4500, with a 24-hour increase of 3.7% - TechFlow (https://www.techflowpost.com/newsletter/detai ...)[2] Ether Prices Blow Past $4,500 For First Time Since 2021 - Forbes (https://vertexaisearch.cloud.google.com/groun ...)[3] Why Is Crypto Up Today? – September 11, 2025 (https://vertexaisearch.cloud.google.com/groun ...)