#Crypto2025Trends Ethereum is a decentralized, open-source blockchain system that has its own cryptocurrency, Ether. It serves as a platform for numerous other cryptocurrencies, as well as for executing decentralized smart contracts. Ethereum officially launched the blockchain on July 30, 2015, under the codename 'Frontier'. 3 Since then, there have been several network upgrades, including 'Constantinople', 'Istanbul', 'Muir Glacier', 'Berlin', and most recently the 'London' hard fork. Ethereum's goal is to become a global platform for decentralized applications, allowing users from all over the world to write and run software that is resistant to censorship, downtime, and fraud.