Let anyone confirm who signed a notice and has not changed.
Sign a report, policy, filing, or contract before it goes out. Anyone who gets it can check who signed it and if it changed.
A fake can look just like you.
Anyone can copy a logo and send a notice in your name.
Sign the final file.
Mark adds your organization's name and the time to the approved version.
Any change breaks the seal.
If someone edits the file after you sign it, the check shows it.
Anyone can check it, free.
No account and no software. Paste the text or drop in the file.
Open the checker
Add one step to the way you send files.
Create a free account.
No card needed.
Sign the approved file.
Keep your review and sign-off steps as they are.
Send it the usual way.
Email, portal, or website. Add the check link so readers can check it.
Good questions.
Does the check prove the notice is true?
No. It shows who signed it and if it changed. It does not check the facts.
Do readers need an account?
No. Checking is free and needs no account or software.
What if the file is copied or converted?
Some tools strip the label. Then the check says it found no label. Send the signed file itself where you can.
Why would a reader trust your label?
Encypher wrote the C2PA standard for textC2PA text-provenance standard: The part of the C2PA standard that puts a signed label inside plain text, using invisible Unicode characters. and co-chairs the task force that keeps it. Our signer is on the list that C2PAC2PA: The Coalition for Content Provenance and Authenticity: the group that publishes the open standard for content labels. checkers trust. See the public record.