Ethereum is a decentralized blockchain platform. It was created to enable smart contracts. Ethereum was proposed by Vitalik Buterin. It launched in 2015. Ethereum allows developers to build decentralized applications. These applications are called dApps. The native currency of Ethereum is Ether. Ether is used to pay transaction fees. These fees are known as gas. Ethereum supports programmable money. It is more flexible than Bitcoin. Ethereum uses blockchain technology. Transactions are recorded on a public ledger. This ledger is secure and transparent. Ethereum initially used proof-of-work. It later shifted to proof-of-stake. This upgrade is called Ethereum 2.0. Proof-of-stake reduces energy consumption. Validators secure the network. Ethereum is widely used in DeFi. DeFi stands for decentralized finance. It removes the need for banks. Ethereum also supports NFTs. NFTs represent digital ownership. Many artists use Ethereum for NFTs. Ethereum has a large developer community. It is one of the most popular blockchains. Smart contracts run automatically. They execute when conditions are met. Ethereum can host tokens. These tokens follow standards like ERC-20. Ethereum transactions can be slow at times. Network congestion increases gas fees. Scaling solutions are being developed. Layer 2 solutions improve speed. Ethereum is constantly evolving. It has many real-world use cases. It powers many blockchain projects. Security is a key feature. Ethereum is open source. Anyone can build on it. It supports innovation. Many startups rely on Ethereum. It plays a big role in Web3. Ethereum continues to grow in popularity.