About Trust Onion

Our mission

Trust Onion helps trusted groups — friends, families, clubs, and teams — check each other's identity. AI voice cloning and deepfake video have turned "is this really you?" into a question worth asking whenever a request feels wrong. We build layered verification tools for the people you trust, without giving up privacy or relying on a third party for the codewords.

Why we built this

A phone call from "your grandchild" asking for bail money. A text from "your CEO" asking for gift cards. These scams used to require a con artist. Now they require three seconds of audio from a TikTok and a voice cloning app. The targets are the people least prepared to question a familiar voice: parents, grandparents, anyone who picks up the phone expecting good news.

We started Trust Onion because the tools that existed (password managers, security questions, callback lists) were built for identity theft, not for a panicked call at 11 PM. Friends, families, and teams needed a simple way to check the identity of someone in their group before acting on a request.

How it works

Trust Onion layers three lightweight verification tools on top of each other, like the layers of an onion:

• Codewords — time-based phrases generated locally on each group member's device. They rotate every 60 seconds and are never stored on our servers.
• Proofies™ — selfies signed by a passkey after Face ID, fingerprint or device-passcode unlock. Anyone with a link can check the original photo and signature in their browser; a previously trusted full public key lets them recognize later Proofies from the same key.
• Trusted groups — private circles where members exchange public keys to form a trust network only they control.

Public by default, under your control. Proofie photos and signed records are stored securely on Amazon Web Services (AWS). A Proofie is public by default: anyone with its link or QR code can view the photo and signed record. You can add a password to make a Proofie private, or delete it at any time. Deleting a Proofie removes its photo and signed record from our AWS storage and takes its link offline, but cannot recall copies someone has already downloaded or saved.

Your verification happens between you and the people you trust.

Who we are

Trust Onion is built by Alibi Ledger, LLC, a small team focused on practical defenses for friends, families, teams, clubs, and other trusted groups. We are headquartered in Wyoming and work remotely across the United States.

Get in touch

Questions, ideas, or feedback? We'd love to hear from you—visit our contact page or email us at hello@trustonion.io.