Assertion credential

Name: credential-assertion

Namespace: https://w3id.org/axone/ontology/v4/schema/core/assertion/

Namespaces

Here are the namespaces used in this schema:

• rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
• rdfs: http://www.w3.org/2000/01/rdf-schema#
• skos: http://www.w3.org/2004/02/skos/core#
• dcterms: http://purl.org/dc/terms/
• schema: http://schema.org/
• xsd: http://www.w3.org/2001/XMLSchema#
• credential-assertion: https://w3id.org/axone/ontology/v4/schema/core/assertion/

Verifiable Credential

IRI: credential-assertion:AssertionCredential

Description

A Verifiable Credential that expresses a factual statement about an identifiable subject as a subject, predicate, and object.

Assertion credentials use predicates to represent domain-specific facts, such as licences, compliance statuses, capabilities, or authorities, without introducing specialised credential schemas for each fact type.

Examples

resource-license-assertion.jsonld

{
    "@context": [
        "https://www.w3.org/2018/credentials/v1",
        "https://w3id.org/axone/ontology/v4/schema/core/assertion/",
        {
            "axone": "https://w3id.org/axone/ontology/v4/"
        }
    ],
    "type": ["VerifiableCredential", "AssertionCredential"],
    "id": "https://credentials.axone.xyz/assertion/resource-license",
    "credentialSubject": {
        "id": "urn:uuid:5d29ea71-003f-46e7-a74d-d8d598629ed8",
        "subject": "did:pkh:cosmos:axone-1:cosmos1rfadcmegmmkotqcjzdc9bhwdpbezp9ymi5rkjx",
        "predicate": "http://purl.org/dc/terms/license",
        "object": "CC-BY-4.0",
        "scope": "did:pkh:cosmos:axone-1:cosmos1unn7us5oknykkzprw8np5haotf4t2fxyudho5z",
        "supportingEvidence": "https://example.com/evidence/resource-license"
    },
    "issuanceDate": "2026-06-11T00:00:00.000000+02:00",
    "issuer": {
        "id": "did:pkh:cosmos:axone-1:cosmos1s7auhjsmvjpiubqwco6bxxehsqwnvepvabhbrv",
        "name": "Axone"
    }
}

Properties

Object

IRI: credential-assertion:object

Domain: credential-assertion:AssertionCredential

Range: 

The value of the asserted fact. The object can be expressed as a URI, a literal value, or a structured JSON-LD value.

Predicate

IRI: credential-assertion:predicate

Domain: credential-assertion:AssertionCredential

Range: xsd:anyURI

The property or relationship being asserted about the subject.

Scope

IRI: credential-assertion:scope

Domain: credential-assertion:AssertionCredential

Range: xsd:anyURI

The context, zone, policy, or other resource within which the assertion applies.

Subject

IRI: credential-assertion:subject

Domain: credential-assertion:AssertionCredential

Range: xsd:anyURI

The identifiable subject the fact is asserted about.

Supporting evidence

IRI: credential-assertion:supportingEvidence

Domain: credential-assertion:AssertionCredential

Range: xsd:anyURI

A resource that supports or documents the asserted fact.