Proveium is built so that your identity never has to leave your phone. Prove who you are to any service — without giving them a copy of your documents.
Zero-knowledge proofs, biometric-only vault access, proxy email, and a complete personal audit trail — built in from day one, not bolted on.
Every feature is designed around the principle that you should never have to trust a third party with more than the minimum they need.
Each verification request asks for the minimum claim required — age band, not date of birth; employed, not salary. You approve or deny every individual claim before anything is shared.
Your identity vault is encrypted with keys derived from both your device hardware and your biometric. Without both, the vault cannot open — not even by Proveium.
Biometric authentication replaces passwords entirely. The biometric never leaves your device — it only unlocks the local hardware key that decrypts your vault.
Zero-knowledge proofs let you confirm a fact to a third party without revealing the underlying data. They receive a cryptographic receipt — not a copy of your documents.
Once your identity is verified, re-using it takes seconds. Tap to share, biometric to confirm, done. No re-uploading documents every time a service asks.
Every sharing event is logged immutably in your personal audit trail. See exactly when, where, and what was shared — and revoke access to any service with one tap.
Zero-knowledge cryptography lets you answer "yes" or "no" to a question without the other party ever seeing the underlying data.
| What they ask | What they receive | What stays private |
|---|---|---|
| Age over 18 | Only: yes/no | Date of birth |
| UK resident | Only: yes/no | Your address |
| Employed | Only: yes/no | Employer or salary |
| Has passport | Only: yes/no | Passport number |
The service receives a cryptographically signed receipt confirming the claim. Your underlying documents never leave your device.
When you sign into a service with Proveium, you can choose to share a relay address instead of your real email. Messages are forwarded to you — but the service never learns your actual address.
Join thousands of people using Proveium to share only what they choose — and nothing more.