Check a signed document
The evidence file
The email with the signed document has a second attachment: the evidence file, ending in -evidence.json. Here you check that PlainSign's evidence log holds every step it records, unchanged, and whether a PDF is the signed document.
This PlainSign's key. The same key is on the signing page of every document it signs. Without PlainSign, the evidence file can be checked with plainsign verify-evidence.
sign.primul.nl/log+f4e00acb+AQ/+4D9Zlip1N/56A/2Yo6OnG/+bEFs5VSFbkt2z6kiG
Check a signature mark
Every signature on a signing page is a mark: a rosette inside a ring of dots. The ring holds the facts of the signature, signed by PlainSign, so it can be checked from a print. Photograph one mark from straight above, so that it fills most of the picture, or scan the page.
Check a checkpoint
Every email from PlainSign ends with a checkpoint, and so does the signing page: the evidence log's state at that moment, signed by PlainSign. Paste one here, from the log's name to PlainSign's signature, to check that the log today still contains it unchanged: that since then, steps were only added.