Coinbase Earn is a platform that allows users to earn rewards on their crypto holdings. Users can stake their assets to help verify transactions on proof-of-stake blockchains and receive rewards in return. The platform supports a variety of assets, including Ethereum, Solana, Cardano, and more. Users can easily start earning rewards with just a few clicks and can choose from multiple assets. Staking rewards are subject to lock-up periods imposed by the respective protocols.