Why platform sign-in?
Screenshots and blue checks can be faked. An OAuth grant can't — the platform itself confirms who's logged in. Building that yourself means an app review on every platform; with Proof Holdings it will be one call.
Build It Yourself
Platform sign-in is the right answer — but assembling it in-house is a platform-by-platform grind.
An OAuth app per platform
13 registrations, review queues, scopes, and breaking API changes — maintained forever.
Or bio-code rituals
“Post this code in your bio” and screenshot checks are spoofable — and decay as handles change hands.
Still no portable evidence
In-house checks end in an internal flag, not an artifact you can share.
What we are building
The platform will confirm the login; we will turn that confirmation into a signed proof you can share.
The platform confirms directly
A proof will be issued only after the person signs in to the platform and grants access — no password shared with us.
13 platforms, one call
GitHub to Discord behind the same API you already use for phones, emails and domains.
One supplier, every asset
The same integration already verifies emails, phone numbers and domains; wallets are planned too.
How it will work
Initiate OAuth Flow
You will call our API to get a sign-in link for the chosen platform.
User Authenticates
The person will sign in to their account and grant read-only access.
Proof Generated
We will check the platform's answer and return a signed proof of account control.
Platforms planned
13 platforms
