Decentralized Identifiers (DIDs) v1.0

Decentralized identifiers (DIDs) are a new type of identifier that enables verifiable, decentralized digital identity. A DID refers to any subject (e.g., a person, organization, thing, data model, abstract entity, etc.) as determined by the controller of the DID. In contrast to typical, federated identifiers, DIDs have been designed so that they may be decoupled from centralized registries, identity providers, and certificate authorities. Specifically, while other parties might be used to help enable the discovery of information related to a DID, the design enables the controller of a DID to prove control over it without requiring permission from any other party. DIDs are URIs that associate a DID subject with a DID document allowing trustable interactions associated with that subject.

w3c-cg/udna

This repository holds the work of the W3C Universal DID-Native Addressing (UDNA) Community Group. We are developing a standard for addressing Decentralized Identifiers (DIDs) on the web.

DID Method Rubric v1.0

The communities behind Decentralized Identifiers (DIDs) bring together a diverse group of contributors who have decidedly different notions of exactly what "decentralization" means.

DIDComm: The Future of Secure and Decentralized Communication

How the W3C-Defined DIDComm Protocol is Revolutionizing Digital Messaging

High Assurance DIDs with DNS

This document outlines a method for improving the authenticity, discoverability, and portability of Decentralized Identifiers (DIDs) by utilizing the current DNS infrastructure and its technologies. This method offers a straightforward procedure for a verifier to cryptographically cross-validate a DID using data stored in the DNS, separate from the DID document.

RFC: Identity · tilesprivacy · Discussion #52

Tiles Identity Decentralized identifiers (DIDs) Tiles will be having decentralized identifiers, since its foremost should be used locally that means authn/authz should be also local. But since Tile...

Decentralized Deliberation Stack (DDS)

A W3C Community Group working draft for an open stack for sovereign, verifiable, interoperable, and resilient deliberation.

Decentralization Trade Offs in AT Protocol and ActivityPub DWeb Camp 2026

Christine Lemmer Webber is lead author and co-editor of the W3C ActivityPub specification. Daniel Holmgren is Head of Protocol at Bluesky, working on the AT Protocol specification at the IETF. Join us for a discussion on decentralization trade-offs and other design decisions in the two protocols, and what that means for different architectures, structures, and even future points of convergence. Moderated by Boris Mann

WebID - W3C Wiki

The W3C is still exploring better ways to do authentication, for example in the 2014 workshop on authentication. The WebID is a Community Group, and anyone can start a Community Group. A Community Group does not necessarily reflect the endorsement of the W3C, but we encourage grassroots communities to experiment with technology that may become a future standard.

PACT Workshop

This workshop follows the W3C Code of Conduct and the W3C Community Group Process.

DID - AT Protocol

Persistent decentralized identifiers (as used in atproto)

Vision for W3C

Copyright © 2025 World Wide Web Consortium. W3C® liability, trademark and permissive document license rules apply.

did:web Method Specification

DIDs that target a distributed ledger face significant practical challenges in bootstrapping enough meaningful trusted data around identities to incentivize mass adoption. We propose a new DID method using a web domain's existing reputation.

12 November 2025 | Isolated Web Apps - Current state and future direction | Calendar

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.

Working on HTML5.1

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.

DIDComm

DIDComm lets people and software use DIDs to communicate securely and privately over many channels: the web, email, mobile push notifications, QR codes, Bluetooth, message queues, sneakernet, and more.