Glossary
Key terms used throughout Skippy documentation.
A-D
| Term | Definition |
|---|---|
| Attribute | A single data field within a credential (e.g., name, employee ID) |
| Claim | An assertion made about a subject in a credential |
| Credential | A digitally-signed attestation containing claims about a subject |
| Credential Offer | An invitation sent to a holder to receive a credential |
| DCQL | Digital Credentials Query Language — syntax for specifying which credentials to request during verification |
| DID | Decentralized Identifier — a globally unique identifier not dependent on a central authority |
H-O
| Term | Definition |
|---|---|
| Holder | Entity that receives and stores credentials (typically an individual) |
| Issuer | Entity that creates and signs credentials |
| Issuer DID | The DID used by an issuer to sign credentials |
| OpenID4VC | OpenID for Verifiable Credentials — protocol for credential issuance and verification |
| Organization | Top-level entity in Skippy that owns projects and credentials |
P-S
| Term | Definition |
|---|---|
| Presentation | A credential (or subset) shared by a holder with a verifier |
| Presentation Template | Rules defining which credentials and attributes to request during verification |
| Project | Container within an organization for managing related credentials and templates |
| SD-JWT | Selective Disclosure JWT — credential format allowing holders to share only specific attributes |
| Schema | Structure definition for credential attributes |
T-W
| Term | Definition |
|---|---|
| Template | Blueprint defining credential structure or verification requirements |
| Verifiable Credential (VC) | W3C standard format for tamper-evident digital credentials |
| Verifier | Entity that requests and validates credentials |
| Verifier DID | The DID used by a verifier when requesting presentations |
| Webhook | HTTP callback triggered when credential events occur |
DID Methods
| Method | Use Case |
|---|---|
did:key | Quick setup, no external dependencies |
did:web | Domain-linked identity, good for enterprises |
did:jwk | Simple key-based DIDs |
did:cheqd | Blockchain-anchored DIDs with revocation support |