A Protocol and Token for Self-Sovereign Identity & Decentralized Trust. Sovrin is decentralized, global public utility for self-sovereign identity. Self-sovereign means a lifetime portable identity for any person, organization, or thing. It’s a smart identity that everyone can use and feel good about. Having a self-sovereign identity allows the holder to present verifiable credentials in a privacy-safe way. These credentials can represent things as diverse as an airline ticket or a driver's license.