Billions FAQs

Getting started

What is Billions Network?

A secure identity platform that allows both humans and AI to prove who they are online without revealing personal data. It uses Zero-Knowledge (ZK) Proofs to give users complete control over their identity. For a simple explanation, watch this video on how ZK Proofs work.

Why should I trust Billions?

Our team has decades of experience in identity and cryptography. The network is trusted by over 2 million users and backed by $30M+ from industry leaders including Coinbase Ventures and Polychain. Billions is led by Evin McMullen, CEO & Co-Founder.

How do I join the Billions Network?

Getting started is simple. Create your profile at signup.billions.network to unlock private verification and community participation.

How do I create and access my identity wallet on Billions Network?

Your private keys stay with you — Billions does not hold them. You can create and access your identity through both mobile and web:

Where can I find the Billions white papers?

ID verification and digital ID

What is a Billions Credential?

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 enables you to prove specific attributes about yourself using ZK proofs without exposing unnecessary personal data.

What are the different types of credentials?
  • Human Credential: foundational credential issued after a liveness check (face scan), proving you are a real person.
  • Verified Human Credential: higher-level credential issued after self-verification with a government-issued NFC-enabled passport or Aadhaar card.
  • Uniqueness Credential: a special biometric credential based on facial uniqueness, only available through specific partner campaigns for airdrop registrations.
What is Credential Verification?

Verification is the process where a service checks a proof generated from your credential. It confirms the credential is valid (issued by a trusted source), unaltered (data not tampered with), and sufficient (meets the service’s requirement). Verification is always initiated and controlled by the user from their device using ZK proofs.

When will more government IDs be supported?

Billions Network is continuously working on adding more government identity options. Updates will be announced via the app and official X and Discord channels.

What happens if a credential is deleted?

If you delete your Human Credential, you can complete the liveness check (face scan) to claim it again. Deletion is permanent to protect network integrity. Each person can only receive a Verified Human or Uniqueness credential once — these cannot be reissued by completing verification a second time.

What should I do if my credential expires?

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

Verified human credential (Passport)

How do I know if my passport is NFC-enabled?

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.

What are the best practices for a successful NFC passport scan?
  • 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.
I'm getting an 'NFC scan already running' message. What should I do?

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

It says 'NFC chip not enabled.' How do I fix this?

Your phone has NFC but it is turned off. Go to Settings > Connections > NFC and turn it on. Then restart the app and try again.

What if my phone says 'NFC not supported'?

This 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.

I'm seeing an 'NFC timeout error' or 'NFC tag was lost.' What's wrong?

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.

My passport's issuing country is not listed. Can I still use it?

Unfortunately no. This means that country is not yet supported. As Billions is incorporated in Europe, it must comply with EU sanctions and export control regulations. Countries currently under comprehensive EU sanctions — including Myanmar, Belarus, Cuba, Iran, North Korea, Russia, and Syria — cannot be supported. Support for more countries is continuously expanding.

The app says my passport is already used. What should I do?

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

Aadhaar Verification

Which Aadhaar QR code should I use?

You must use the official digital QR code downloaded directly from the mAadhaar app or the official UIDAI website. QR codes from physical cards or third-party apps like DigiLocker will not work.

I'm getting a 'Wrong Aadhaar QR code scanned' or 'No iden3 message found' error.

This happens when you scan an incorrect or unsupported QR code. Ensure you are using the correct digital QR and that you start the process from within the Billions app’s verification flow, not by scanning the QR directly from outside the app.

I'm getting an 'Aadhaar circuits not found' error.

This indicates the necessary verification files did not download correctly. Connect to a strong, stable internet connection and try reinstalling or updating the Billions app.

The app says my Aadhaar QR is already used.

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

Billions wallet and account

What can I do if the Billions app keeps crashing?

This is often a device or OS issue. Ensure you have updated to the latest version of the Billions app. If it persists, contact the support team with your device model and OS details via Discord.

The app store says my device is non-compatible. Why?

App requirements can change with updates. Your device’s operating system may no longer meet the minimum requirements. Minimum supported versions are: Android 8.0 (SDK 26) with arm64-v8a and x86_64 architecture support, and iOS 15.6.

I'm seeing a reCAPTCHA error when signing in with Google.

This is usually a browser issue. Try clearing your browser cache and cookies, temporarily disabling extensions like ad blockers, or switching to a different network such as mobile data instead of Wi-Fi.

The app says my account has been deleted.

This means the account you are trying to access was previously deleted and cannot be used again. Please create a new account to continue. Note that this only deletes your pre-registration portal account, not your identity wallet.

How can I recover a deleted account?

If your account was deleted within the last 30 days, Billions may be able to help. Email [email protected] from the address linked to the account with the subject line: Recover My Account.

Security and privacy

How is my personal information stored and protected?

Your personal information, such as passport scans, is stored in fully encrypted storage. All credentials are securely encrypted and linked to your identity wallet — accessible only by you. Billions uses Zero-Knowledge Proofs to verify your identity without ever seeing, storing, or sharing your private data.

What happens to my credentials if I delete the Billions app?

Nothing. Deleting the app does not erase your credentials as long as you have not deleted your account. When you reinstall and sign in with the same account, your credentials will be automatically restored from encrypted storage.

What should I do if my crypto wallet is compromised?

If you signed in to Billions using a crypto wallet and that wallet has been compromised, your immediate priority should be to regain control of it using your Secret Recovery Phrase. Once restored, you can log back into Billions using the same wallet and your credentials will remain accessible. If you cannot regain access, your Billions account and credentials will also be permanently lost.

How can I avoid scams on Billions?

The Billions team will NEVER ask for your password, seed phrase, or other sensitive information in DMs or unofficial channels. Always verify you are speaking with official team members in the Billions Discord server.

Billions support

For technical support or questions, email [email protected].