What problem does it solve? Issuing a verifiable eReceipt credential requires the exact nested claim paths defined by the iGrant.io verifiable data registry, and hand-writing 33 deeply nested claim path pointers is error-prone. This Skill supplies the authoritative schema so credential definitions match the registry exactly. ## Core Features & Use Cases - Complete claim path pointer document: All 33 mandatory claims of the eReceipt credential (type VerifiablevReceiptSDJWT, namespace eu.europa.ec.eudi.verifiablereceipt) in dc+sd-jwt format, covering seller address, purchase receipt lines, monetary and tax totals, payment means, and delivery data. - Credential definition guidance: Step-by-step instructions for calling POST /v2/config/digital-wallet/openid/sdjwt/credential-definition with the correct vct, version, validationPath, and claims payload. - Integrator interview checklist: Structured questions covering environment, API key, format, claims subset, issuance mode, revocation, signing, and trust list registration. - Use Case: A retailer wants to issue verifiable digital purchase receipts to customer EUDI wallets. Use this Skill to build the credential definition with the exact claim paths, then issue receipts that holders can selectively disclose. ## Quick Start Use the igrantio eReceipt credential schema skill to create an SD-JWT VC credential definition for VerifiablevReceiptSDJWT on the iGrant.io demo environment.