Is this signed document genuine?
Someone sent you a PDF that says it was signed. Drop it in to find out in seconds. No account, and the file never leaves your device.
- Checked on this device
- Never uploaded
- Takes seconds
You get one of three answers
- Genuine
Genuine and unchanged
This exact file is the one sealed when signing finished. You also see who signed it, when, and its entry in the public record.
- Changed
Changed since it was sealed
It claims to be one of ours, but the file was edited after it was completed. Ask the sender for the copy from their account.
- No record
No record of it
Not necessarily fake. It usually means it was signed somewhere else, or it is a scan rather than the original file.
Your file never leaves your device
- contract.pdf
01
Your browser reads the file
The PDF is opened right here, on your device. Nothing is sent anywhere while it is read.
- 9f2c41abe7d03b58c1a94e6f2d7b8a05e3c9174f6ab2d0e85c7f1934a6be20d1
02
It becomes a fingerprint
The file is reduced to 64 characters. Change one letter of the document and every one of them changes.
- RecordFound
- SealedOct 6, 2026
- Entry1,204
03
We look the fingerprint up
A match means this is, byte for byte, the file we sealed, and the record behind it comes back.
What a match proves
A match proves
- This is, byte for byte, the file sealed when signing finished
- Who was asked to sign, and when each of them did
- The audit trail behind it is unbroken
- It is in the public record, published every night
It does not prove
- Who was at the keyboard, which is true of every e-signature
- That a print or a scan is genuine: only the original PDF matches
Every document you send gets the same seal, certificate and public record, on every plan.