OFA - Offline-First Digital credentials for Cardano
Create DIDs, issue and verify W3C credentials, and publish identifiers on‑chain using any CIP‑30 Cardano wallet. No servers. No middlemen. You own the keys and the data.
Built with
and secured by the Cardano blockchain
What you can do with OFA
Everything you need to build decentralized identity experiences on Cardano.
Create DIDs
Generate and manage Prism and Peer DIDs locally, fully under your control.
Issue Credentials
Issue W3C credentials using open standards with no external services.
Verify Credentials
Verify presentations offline with DIDComm V2 secure messaging.
Publish On‑Chain
Publish DIDs on Cardano using any CIP‑30 compatible wallet.
Secure - OnChain - Private
Your identity, your keys, your data — owned and controlled by you.
Where are keys stored?
Your data is encrypted with your password and stored locally in your browser or desktop app. Losing your password means permanent loss of access.
Offline first? wait, what?
No heavy deployments needed. Publish DIDs on Cardano and enable trustless verification of your signatures and the credentials you issue.
Why Cardano? Why DIDs
DIDs enable decentralized identity without central control. Cardano provides secure, sustainable infrastructure accessible to anyone with a Web3 wallet.
How it works
Three simple steps to own your identity.
Connect your wallet
Use any CIP‑30 compatible Cardano wallet. Your private keys never leave your device.
Create your DID
Generate Prism or Peer DIDs locally and optionally publish on‑chain.
Issue or verify
Exchange credentials over DIDComm V2 using open standards and best‑in‑class crypto.
Why Choose Offline-First Identity?
Experience unparalleled security, privacy, and control over your digital identity.
Zero Infrastructure Required
Deploy identity solutions without servers, databases, or cloud dependencies. Everything runs locally in your browser.
Trustless Verification
DIDs published on-chain enable fully decentralized verification without trusting any intermediary service or authority.
Complete Data Ownership
Your identity data is stored locally and password-protected. No third party can access, control, or monetize your information.
Cardano Integration
Leverage Cardano's secure and sustainable blockchain infrastructure with seamless CIP-30 wallet connectivity.
Perfect for the Cardano Ecosystem
Build the next generation of dApps with user-centric identity at the core.
Uses DIDComm V2
W3C + DIF Standards
JWT, SDJWT, Anoncreds
CIP-30 Compatible
Secure encrypted storage
Distributed Mediators
FAQ
Does OFA require any server?
No. It runs locally in your browser or desktop app. Optional on‑chain DID publication uses your wallet.
Where are my keys stored?
Encrypted with your password and stored locally. We never see or transmit your keys.
What wallets are supported?
Any CIP‑30 compatible Cardano wallet.
What if I lose my password?
We cannot recover it. Without your password you will lose access to locally stored data.
Ready to build infrastructure‑free?
Start building decentralized identity on Cardano. Connect your CIP‑30 wallet and get started in minutes.