$ETH , also known as Ethereum, is a pioneer in smart contract platforms. Its design concept is like a public computer operated by a network of many users. It provides an open source public blockchain technology platform for the world, helping decentralized applications to be free from censorship and tampering. Ethereum 2.0 will introduce sharding and chain splitting, converting the energy-consuming "proof of work" into the lower energy-consuming "proof of stake". The "London Hard Fork" upgrade has been completed in 2021, changing the way transaction fees are calculated.