Solo is a zkHE-based identity protocol enabling “trusted anonymous” authentication for Web3. It balances privacy, identity uniqueness, and decentralized verifiability by combining homomorphic encryption, Pedersen commitments, and Groth16 zk-SNARKs. Biometric data is encrypted and processed locally, producing on-chain zero-knowledge proofs without exposing any sensitive information. Deployed on its own Layer-2 (SoloChain), Solo offers fast, scalable, mobile-friendly identity verification for DeFi, gaming, and Sybil-resistant apps—solving Web3’s “impossible triangle” of privacy, scalability, and trust.