Definition
Digital identity is the set of information that describes and distinguishes an individual, organization, or device in digital spaces. It can include identifiers like usernames, cryptographic keys, and verified attributes such as names or ages, depending on the system. In blockchain contexts, digital identity often relies on public–private key pairs and verifiable data stored on or linked to a network. This identity concept allows entities to be recognized, authenticated, and associated with specific actions or records online.
Unlike a physical identity document, a digital identity is made up of data points that exist across various platforms and services. In crypto and blockchain ecosystems, these data points may be tied to addresses, on-chain records, or credentials issued by trusted parties. The structure of a digital identity determines how much information is revealed, how it is verified, and how it can be reused across different applications. It serves as a foundational concept for enabling trust, accountability, and personalization in digital and decentralized systems.
In Simple Terms
Digital identity is like a person’s or organization’s “profile” in the online world, made from the data that proves who they are. In blockchain settings, this profile is often linked to cryptographic keys and records that can be checked without relying on a single central authority. It helps systems know which actions belong to which entity, such as who controls a given address or which organization issued a particular credential. By defining identity in data form, digital identity makes it possible to interact, sign, and prove things securely over the internet.