A guide to the mark
One public record. Several ways to check it.
The permanent public record is the lasting page for a Work’s serial, making details, and proof files. QR codes, tap tags, and digital certificates connect to that record in different ways—and offer different kinds of evidence.
Five related tools
What each one tells you
Start with the public record. Then read the method used for the check; a printed mark and a fresh secure-chip response do not make the same claim.
- 01
QR code
A printed shortcut
The square mark opens the matching public record. It confirms which record the mark points to. Because anyone can copy a printed code, the scan alone does not prove that the physical Work is present.
- 02
Static tap tag
A link that stays the same
This NFC tag stores a fixed link and opens it when tapped. It is a convenient alternative to the QR code, with the same limit: the link can be copied, so the tap proves the destination rather than the presence of the original tag.
- 03
Live secure tag
A fresh answer on every tap
On supported Works, the secure chip creates a new response each time. Sunlit Verify checks that response and whether it arrived in the expected order, adding evidence that the registered chip answered at that moment.
- 04
Certificate tag
The tag attached to the paper certificate
This tag joins the paper certificate to the Work’s public serial and to the certificate’s own registered tag. It holds a signed set of identifying fingerprints for the record and proof files—not the full files—so a substitution or mismatch can be noticed.
- 05
The Work’s digital identity certificate
An identity file for one Work
This independently checkable file names the public serial, verification page, and a unique fingerprint. Sunlit’s certificate authority issues it. If the Work is unfinalized, the certificate is revoked and can no longer be presented as current.
Evidence, stated carefully
The public record establishes the identity Sunlit assigned to the Work and preserves its history. A QR scan or static tap only matches a mark to that record.
A successful live secure tap adds evidence that the registered chip answered freshly. It does not replace inspection of the physical Work, its condition, or its chain of custody.
Check a public serial →