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Community & Business Groups

Credentials Community Group

The mission of the W3C Credentials Community Group is to explore the creation, storage, presentation, verification, and user control of credentials. We focus on a verifiable credential (a set of claims) created by an issuer about a subject—a person, group, or thing—and seek solutions inclusive of approaches such as: self-sovereign identity; presentation of proofs by the bearer; data minimization; and centralized, federated, and decentralized registry and identity systems. Our tasks include drafting and incubating Internet specifications for further standardization and prototyping and testing reference implementations.

w3c-ccg
Group's public email, repo and wiki activity over time

Note: Community Groups are proposed and run by the community. Although W3C hosts these conversations, the groups do not necessarily represent the views of the W3C Membership or staff.

Final reports / licensing info

Date Name Commitments
Confidence Method v0.9 Licensing commitments
Verifiable Credential Rendering Methods v0.9 Licensing commitments
Traceability Vocabulary v1.0 Licensing commitments
Traceability Interoperability v1.0 Licensing commitments
RDF Dataset Canonicalization Licensing commitments
Data Integrity 1.0 Licensing commitments
EdDSA Cryptosuite v2020 Licensing commitments
ECDSA Cryptosuite v2019 Licensing commitments
JSON Web Signature 2020 Licensing commitments
Decentralized Identifiers (DIDs) v0.13 Data Model and Syntaxes Licensing commitments
Verifiable Claims Data Model and Representations 1.0 Licensing commitments
Verifiable Claims Use Cases 1.0 Licensing commitments

Chairs, when logged in, may publish draft and final reports. Please see report requirements.

Call for Final Specification Commitments for Confidence Method v0.9

On 8 September 2025 the Credentials Community Group published the following specification:

This is a Call for Final Specification Commitments. To provide greater patent protection for this specification, participants in the Credentials Community Group are now invited make commitments under the W3C Community Final Specification Agreement by completing the commitment form. Current commitments are listed on the Web. There is no deadline for making commitments.

If you represent a W3C Member, please contact your Advisory Committee Representative, who is the person from your organization authorized to complete the commitment form.

If you have any questions, please contact the group on their public list: public-credentials@w3.org. Learn more about the Credentials Community Group.