This repository is a comprehensive specification and documentation set for the OpenDID (Open Decentralized Identity) framework. It defines standards, protocols, and data models for a decentralized identity system based on W3C DID and VC specifications, with extensions for zero-knowledge proofs. The repository contains no executable code but provides detailed specifications through Markdown documents, GraphML diagrams, PlantUML sequence diagrams, and the OpenDID Schema Definition Language (OSD). It covers the full lifecycle of decentralized identities including DID document management, verifiable credential issuance and presentation, zero-knowledge proof-based verification, wallet management, and secure communication protocols between system components.