Apps built on Ethereum have generated approximately $26 billion in user-paid fees since the network's inception, highlighting the platform's central role in the blockchain economy. The top contributors to this "Ethereum GDP" are Tether (a leading stablecoin issuer), Uniswap (the largest decentralized exchange), and Circle (another major stablecoin operator). These entities drive significant transaction volume and fee generation through stablecoin transfers, decentralized trading, and other DeFi activities, underscoring Ethereum's dominance as the primary platform for smart contract-based applications and financial innovation