Clear DefinitionsIdentity Hub
1 min read
Pronunciation
[ahy-den-ti-tee hub]
Analogy
Like a personal safe deposit box where you keep all your ID documents and only share specific ones when needed.
Definition
A user‑centric service that stores, manages, and shares personal identity data, credentials, and preferences under user control, often implemented as a secure data vault.
Key Points Intro
Identity hubs give users sovereign control over their digital identity assets.
Key Points
Data vault: Encrypted storage for claims and credentials.
Access grants: Users grant apps permission to read specific data.
Interoperability: Supports DIDComm and OIDC for data exchange.
Audit logs: Records who accessed which claims and when.
Example
A user’s identity hub holds their driver’s license VC; a rental dApp requests read access and the hub issues a verifiable proof without revealing other data.
Technical Deep Dive
Hub implements Solid‑style POD or Ceramic IDX. Uses encrypted JSON‑LD storage, access control via capability tokens (UCAN), and publishes activity logs on a blockchain audit ledger.
Security Warning
Hub compromise exposes all personal data; enforce multi‑factor authentication and hardware-backed keys.
Caveat
User responsibility increases; losing keys can mean permanent data loss.
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