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Specs

The standards, in one place

What each spec does, who maintains it, and where it fits when an agent is the one holding or presenting the credential.

Data model & formats

Verifiable Credentials Data Model 2.0The shared vocabulary: issuer, holder, verifier, claims and proofs.W3C
SD-JWTSelective disclosure for JWTs: hash every claim, reveal only some.IETF
SD-JWT VCA credential format on top of SD-JWT, with types and key binding.IETF
mdoc (ISO/IEC 18013-5)The CBOR-based format behind mobile driving licences.ISO

Issuance & presentation

Lifecycle & trust

Token Status ListRevoke or suspend credentials with a compressed, privacy-friendly bit list.IETF

Agents

Emerging work. Expect change.

Agent-to-Wallet Protocol (A2WP)Lets an agent ask a wallet to acquire and present credentials without holding them.IETF draft