Decentralized Identifiers (DIDs) Core
DIDs are the foundation of self-sovereign identity (SSI) and Web3 identity. They underpin Verifiable Credentials, Sign-In with Ethereum, and many blockchain identity schemes.
What It Defines
W3C spec for decentralized identifiers: a new type of identifier that enables verifiable, decentralized digital identity. A DID resolves to a DID Document containing public keys, service endpoints, and verification methods.
Canonical (Normative)
Convenient (Practical)
Related References
Publishes web platform specs including CSS, accessibility, security policies, Service Workers, Web App Manifest, and many browser APIs. Also maintains some versioned HTML/DOM specs.
Related Specs
The W3C standard for digital credentials. Increasingly important for identity verification, age proofs, academic credentials, and government ID use cases.
SIWE is the Web3 equivalent of Sign-In with Google. Enables dApps to authenticate users via their Ethereum address without a password, using their wallet signature.
Sign-in with Google/Apple/GitHub all use OIDC. If your app authenticates users via a third party, you're using OIDC whether you know it or not.