Lit Protocol ($LITKEY) is a chain-agnostic decentralized key management network that revolutionizes blockchain security through threshold cryptography, multi-party computation, and Trusted Execution Environments. This comprehensive guide explores how $LITKEY enables secure, programmable signing and encryption across multiple blockchains including Ethereum, Solana, Polygon, and Cosmos. Learn about the protocol's core features like programmable signing with Lit Actions, privacy-first architecture with Shadow Splicing scalability, and distributed key management eliminating single points of failure. Discover practical use cases ranging from token-gated content and automated DeFi strategies to secure AI agent operations and enterprise key management. The article details the upcoming Naga mainnet launch, strategic partnerships, and $LITKEY's utility-driven economic model as nodes stake tokens to power the network. Perfect for developers, enterprises, and Web3 participants seeking to understand the future of decentr