SolSign is a decentralized identity and authentication platform that enables users to prove human liveness using ZK verification. Each verified user receives a tokenized proof linked to their Solana wallet, which can be used to securely sign documents, contracts, and on-chain actions with cryptographic provenance. By combining human authentication, document signing, and blockchain auditability, SolSign establishes a trust layer for AI-human interactions and enterprise workflows in Web3. Built with compliance and interoperability in mind, it serves as the foundation for future KYC, notarization, and enterprise verification solutions on Solana.