$ETH Ethereum (ETH) is not only the 'blue chip' of the cryptocurrency market but also the technical foundation of the entire blockchain ecosystem. It supports smart contracts and has given rise to a series of innovative applications such as DeFi, NFT, and DAO, fundamentally changing people's perceptions of the internet and finance. With the advancement of the 2.0 upgrade, ETH is transitioning from PoW to PoS, enhancing energy efficiency and scalability, and the ecosystem is becoming more prosperous. Whether it is the explosion of Layer 2 scaling solutions or the active developer community, Ethereum remains at the core of technological innovation in the industry. In the future, it will still be a key cornerstone of the on-chain world, deserving of continuous attention and in-depth research.