Issue a signed Open Badges 3.0 OpenBadgeCredential as a W3C Verifiable Credential.
domain: imsglobal.org · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Build a credential with type set to ["VerifiableCredential", "OpenBadgeCredential"], including issuer (a Profile object with id, type, name) and validFrom.
Set credentialSubject.type to AchievementSubject and nest an achievement object describing the badge (id, criteria, description).
Sign the credential with a DataIntegrityProof (e.g., cryptosuite eddsa-rdfc-2022), referencing a verificationMethod that resolves to your issuer's published key material (e.g., a DID).
Deliver the signed credential directly to the learner, distinct from using the separate BadgeConnect API, which governs pushing already-issued badges to a wallet rather than issuance/signing itself.
Verify the credential independently (signature + schema) before considering issuance complete.
Known gotchas
Open Badges 2.0 (baked PNG/SVG assertions) and 3.0 (VC-based) are not wire-compatible — confirm which version a recipient platform expects.
Key/DID management for the proof's verificationMethod is entirely the issuer's responsibility; there's no standardized hosted signing service mandated by the spec.
Don't conflate BadgeConnect (a transport/delivery protocol) with OB 3.0 issuance — a platform can implement one without the other.
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