Sender identity verification project

Help build a trusted identity for every message

Sender Passport is a proposed standard — a Universal Identity certificate that lets a call, email, or text prove who actually sent it, before it ever reaches you. Getting it built takes more than a working group; it takes support.

What we're building

Right now, nothing stops a scammer from claiming to be your bank, the IRS, or your own phone carrier — caller ID, email headers, and sender fields can all say whatever the sender wants them to say. Sender Passport closes that gap with three pieces working together: a technical credential system that checks every sender instantly, a governance model that keeps the certificate authority trustworthy across every country and carrier, and an industry effort to get every ISP, inbox, and messaging platform actually checking the passport at the gate.

It's the same enforcement pattern that made STIR/SHAKEN work for phone calls — verified credentials, edge-level enforcement, and a shared revocation list so a bad actor gets cut off everywhere at once — extended to cover digital communication broadly.

Where your support goes

01

Technical development

Building and testing the credential and verification protocol, and the reference implementation ISPs and platforms can adopt.

02

Policy & outreach

Engaging regulators, carriers, and standards bodies to move this from framework to an adopted, enforced standard.

03

Site & community

Keeping the project accessible — hosting, documentation, and the discussion boards where verified members work through the details.

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Other ways to help

  • Spread the word. Share the project with anyone in telecom, network engineering, PKI, or regulatory policy.
  • Join the discussion. Verified members work through the technical, regulatory, and industry details in our discussion boards.
  • Get updates. Sign up for the newsletter to follow the project's progress.
  • Reach out directly. If you work in the space and want to help take this from framework to standard, get in touch.