ERC-777 is a token standard on the Ethereum blockchain that improves upon the earlier ERC-20 standard. It allows for more flexible token interactions and addresses some of the limitations associated with ERC-20.One key feature of ERC-777 is its support for advanced token functionalities like operators. This means that users can grant permission to other addresses to manage their tokens, enabling a range of use cases, such as automated trading or decentralized finance applications.Another significant aspect is the ability to send tokens without needing to specify a recipient’s address directly. This is achieved through a mechanism called ‘send’ and ‘receive hooks,’ which lets smart contracts take action during a token transfer. This adds a layer of security and allows for more complex interactions between tokens and contracts.Overall, ERC-777 aims to enhance user experience and expand the potential for developers to create innovative applications while maintaining compatibility with existing ERC-20 tokens.