Billions FAQs

A credential is a verifiable, privacy-preserving digital certificate issued to your digital identity. Billions offers different types of credentials based on the level of verification you complete. Each one enables you to prove specific attributes about yourself using cryptography (ZK proofs), without exposing unnecessary personal data. ✅

We offer several credentials, each representing a different level of verification:

• Human Credential 🧑: This is our foundational credential. You can claim it by successfully completing a liveness check by performing a face scan, which proves you are a real person.
• Verified Human Credential 🛂: This is a higher-level credential issued after self-verification with government issued document, such as an NFC-enabled passport (or an Aadhaar card).
• Uniqueness Credential ✨: This is a special biometric credential based on your facial uniqueness which can be claimed by performing a face scan. It is not natively available in the Billions Wallet and can only be obtained and used through specific partner campaigns for airdrop registrations (follow our social accounts for more information on upcoming campaigns).

Verification is the process where a service (like an app) checks a proof generated from your credential. It confirms that your credential is:

• Valid – Issued by a trusted source.
• Unaltered – The data hasn’t been tampered with.
• Sufficient – It meets the service's requirement (e.g., "Is this user a unique human?").

Verification is always initiated and controlled by the user from their device. We use  ZK proofs to guarantee that verification never exposes the underlying credential or link user behavior across Apps or Services.

Billions Network is working on adding more government identity options. We will notify everyone via the app and our official X and Discord accounts.

If you delete your Human Credential, you can complete the liveness check (face scan) to claim the credential again.

⚠️ Deletion is intended to be permanent to protect network integrity; appeals and error-recovery are available through support, subject to strict verification. Completing document or face verification again will not result in issuing credentials. Each person can get these credentials only once, one through document verification (for Verified Human) and one through face verification (for Uniqueness).

This safeguard ensures that every identity on Billions remains genuinely unique, protecting the network’s trust, privacy, and security.

You can easily refresh an expired Human Credential directly in the Wallet. Just open the credential, tap the “Refresh” 🔄 option, and follow the on-screen steps to re-verify.

Look for the official biometric passport logo (a small rectangle with a circle in the middle: 🛂) on the front cover of your passport. Only passports with this logo contain an NFC chip and are supported.

✅ For the best results, always:

• Use the latest version of the Billions app.
• Remove any phone cases, wallet sleeves, or passport covers.
• Ensure you are in a well-lit environment with a neutral background.
• Hold your phone and passport completely still during the scan.
• Disable Airplane Mode, as it can interfere with NFC.

This means a previous scan hasn't finished. Hold your phone completely still on the passport to allow it to complete. If it persists, wait a few moments before trying again.

Your phone has NFC, but it's turned off. Go to your phone’s Settings → Connections → NFC and turn it on. Then, restart the app and try again.

This message means your phone does not have a built-in NFC chip. You will need to use a different device with NFC capability to complete the verification.

This means your phone lost connection with the passport's chip, usually because of movement. Place the passport on a flat surface and hold your phone perfectly still on top of it during the entire scan.

Unfortunately, no. This means we do not yet support passports from that specific country.

As Billions is incorporated in Europe, we are required to comply with EU sanctions and export control regulations. The following countries are currently under comprehensive EU sanctions, and we cannot allow users from these regions to upload passports or receive credentials:

Myanmar, Belarus, Cuba, Iran, North Korea, Russia, and Syria.

We’re continuously expanding support for more countries as global regulations evolve.

Each Passport can only be registered with only one Billions account. This message means you have already verified with this Passport. Please log in with your original account