Litentry is a privacy-preserving Identity Aggregation protocol that enables granular access to and control of data. Featuring a DID indexing protocol and a Substrate-built distributed DID validation blockchain, Litentry provides a decentralized, interoperable identity aggregation service that mitigates the difficulty of resolving agnostic DID mechanisms. Litentry provides a secure vehicle through which users manage their identities and dApps obtain real-time DID data of an identity owner across different blockchains.