A Decentralized Identity (DID) is a type of identifier that is anchored on decentralized systems, allowing individuals, organizations, or entities to have control over their own digital identities without the need for a central authority. DID systems use blockchain technology or distributed ledger technology to enable users to create, own, and manage their identities securely and privately. This technology provides a way for users to authenticate themselves and share personal information selectively, enhancing privacy and security in the digital world.