Decentralized Identity

Verifiable Credentials (VC)

Verifiable credentials are a W3C standard for cryptographically signed digital attestations — a tamper-evident way to prove things like 'I'm over 18', 'I'm a licensed nurse', or 'I work for Acme' without phoning home to the issuer each time.

Last reviewed 5/30/2026

Key points

  • W3C standard (VC Data Model 2.0)
  • Cryptographically signed by an issuer, held by a subject, presented to a verifier
  • Supports selective disclosure (share only the needed claims)
  • Pairs with Decentralized Identifiers (DIDs)
  • Adopted by EU Digital Identity Wallet, US mDL programs, and pilot enterprise reusable-identity stacks

What it is

Verifiable credentials (VCs) are the digital equivalent of a passport, driver's license, or diploma — but cryptographically signed by the issuer, held in the user's wallet, and verifiable offline.

The three roles:

  • Issuer signs a claim about a subject
  • Holder (the subject) keeps the credential in a wallet
  • Verifier checks the issuer's signature against a known public key (often via a DID document or registry)

How it works

Issuer signs { subject: did:example:abc, claim: 'over18', issuedAt: ... } with their private key. The holder stores it. A verifier accepting age proof checks the signature and the issuer's trust status — no callback to the issuer needed, preserving privacy.

With selective disclosure (SD-JWT, BBS+ signatures), the holder can prove a claim without revealing the full credential.

When buyers care

  • EU Digital Identity Wallet (EUDI) and eIDAS 2.0 deadlines
  • Mobile Driver's Licenses (mDL, ISO 18013-5) rollouts in US states
  • Workforce 'reusable identity' (verified hire / verified contractor)
  • KYC and education credential reuse

Common misconceptions

  • VCs don't require blockchain. DIDs can live on a chain, but VCs themselves are just signed JSON / JWT.
  • VCs don't replace IdPs. They complement them as a portable proof layer.

FAQ

How do VCs relate to DIDs?

DIDs identify the parties (issuer, holder). VCs carry the signed claims about them.

Are VCs production-ready?

Yes for regulated rollouts (mDL, EUDI). Enterprise workforce adoption is still early in 2026.