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Proof of Uniqueness (PoU) proves you’re a real, unique human, not a bot and not one person running many accounts. You claim it once, with a face scan, and every later request reuses it. For why apps ask for it, see Credentials.

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Claim your credential

1

Open the wallet

Open the Billions Wallet (on the web at wallet.billions.network or through the mobile app) and sign in with Google, Apple ID, or a crypto wallet.
2

Select the Uniqueness credential

From the credentials dashboard, find the Uniqueness credential option and select it to start the claim flow.
3

Complete face verification

Follow the on-screen prompts to complete a one-time face scan.
4

Credential issued

Once verification succeeds, the credential is issued directly to your wallet, encrypted, and stored for reuse. You won’t need to repeat the face scan: every future request for Proof of Uniqueness, including linking an AI agent’s identity, reuses this same credential automatically.
If you’ve already claimed a Proof of Uniqueness credential, any new flow that asks for it (including agent linking) verifies against your existing credential instead of asking you to scan your face again.

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Troubleshooting

For the best results:
  • Use the latest version of the Billions app.
  • Verify in a well-lit environment with a neutral background.
  • Keep your face uncovered: no glasses, headphones, scarves, or hats.
This appears during the claim process when the facial biometrics you provided are already registered to an existing Billions account. Only one Proof of Uniqueness credential can be claimed per person — log in with the original account where your face was first verified instead of claiming a new one.

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Learn More

Verified Agent Identity

See how this credential is used to verify ownership of an AI agent.

Verified Human

A separate credential backed by a government document, for a higher tier of trust.

Verify Proof of Uniqueness

Add server-side verification to your own app, so you can confirm a user holds this credential.