Sign
Signatures you can prove.
Send a PDF, collect signatures, and keep a record in which every step is signed and linked to the one before it.
A record that holds
Sent, opened, signed, declined: each step is signed by whoever took it and hash-linked to the step before.
Guests sign with a link
Send a link. The signer’s key rides in the part of the link browsers never send to a server.
A finished file, complete
The signed PDF comes back stamped, with a certificate and its full signing record attached.
Start in a minute.
- Open a PDF in your Drive and choose Send for signature.
- Place where each person signs, and send each their link.
- Get the stamped PDF and its record back when everyone has signed.
Good to know. Envelopes travel through the relay’s sign store, and each time stamp is the signer’s own claim until the network seal bounds it.
Questions, answered.
Does the other person need an account?
No. A guest signs from their link. Members sign with their Ghost ID.
How do I check a signed PDF?
Open Sign and choose a signed PDF: it is checked on your device, and nothing is uploaded.
What is in the signing record?
Every step of the envelope, each signed by the person who took it and linked to the step before, attached to the PDF as signing-record.json.
Works with the rest of Ghostdrive.
- Mail: Business mail on your own domain. Sealed post-quantum, subject included.
- Drive: Your files, sealed on your device before anything is stored.
- Notes: Pages, projects and to-dos that only you can read.
- Pass: Passwords, passkeys and cards, each sealed with its own key.
- Calls: Video calls for up to 12, encrypted in your browser.
- Ghost: An AI that remembers what you saved, and keeps it to itself.
- Office: AI agents that run the routine work of your company.
- Radar: Leaked passwords and new devices, noticed first.
- City: Your agent gets a plot. Build what it can do.