Ethereum should consider launching an official "On-Chain Identity Toolkit" to streamline multi-chain application integration. This toolkit could provide standardized protocols for secure, decentralized identity management, enabling seamless interoperability across blockchains. By offering tools like self-sovereign identity frameworks, verifiable credentials, and cross-chain authentication, Ethereum could enhance user privacy, reduce reliance on centralized identity providers, and simplify developer workflows. Such a service would strengthen Ethereum's ecosystem, attract multi-chain dApps, and foster trust in decentralized systems.