Core capabilities

Compactness

The compact nature of the credential is an essential feature of offering credentials that work in offline or paper-based contexts, as the credential payload is small enough to fit inside a QR code.

Multi-Format

CWT credentials can be converted to a number of formats. This includes PDF documents that can be presented digitally or printed, as well as Apple and Google passes that can be stored in a digital wallet. Thus, CWT credentials reduce the digital divide by supporting offline or paper-based contexts alongside digital-first channels.

Self contained

CWT credentials are bearer credentials where all the assurance is fully self-contained within the QR code, with no need for complex dynamic presentation capability from the holder.

Offline verification

Holders present CWT credentials by showing a verifier a QR code representing their credential. This can be scanned visually, or digitally transmitted by uploading an image or PDF. Verification can be online via API or entirely offline. This makes CWT credentials ideal for rapid verification scenarios and/or when there is no reliable internet connectivity.

Revocation

You can use MATTR VII to control the status of issued CWT credentials. This allows verifiers to obtain the revocation status of a CWT credential as it is being presented in a way that preserves the privacy of the credential holder.

When a verifier requests a revocation list, the issuer cannot tell what credential are they checking the status for. This means the issuer does not know how often or to whom a credential is being presented, maintaining holder’s privacy.