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Credential Type Registry

The SIROS Foundation maintains a public registry for publishing credential type metadata at registry.siros.org.

Purpose​

The registry provides a publication platform for organizations to share their credential type metadata files (including VCTM). It serves as:

  • A storage backend for credential type metadata organized by organization
  • A publication point where credential type metadata can be discovered
  • An aggregation service that collects metadata from multiple sources
Important Distinction

The registry is a publication mechanism, not a resolution service. Credential type resolution (looking up metadata by VCT identifier) is implemented separately. See the go-wallet-backend for a reference implementation that can use registry.siros.org as a backend.

What is VCTM?​

Verifiable Credential Type Metadata (VCTM) files define how credentials should be displayed and what claims they contain. They follow the IETF SD-JWT VC specification.

Visit registry.siros.org for details on available credential types and how to publish your own.