What is Decentralized Identifier (DID)?

A decentralized identifier (DID) is a type of digital identification that is typically used on public blockchain networks. Once established, DIDs allow their users to verify and use their identities without a centralized authority, identity provider, or related third party. This is accomplished through the use of an identity wallet that uses key-pair cryptography to verify a person's identity. One interesting application of DIDs is the ability to create separate DIDs that share specific data with specific online entities. For example, you could verify your nationality without revealing your name or date of birth (DOB).