Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
concept
|
| gptkbp:createdBy |
varying paper thickness during manufacturing
|
| gptkbp:defines |
a recognizable image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light
|
| https://www.w3.org/2000/01/rdf-schema#label |
Watermark
|
| gptkbp:invisible |
sometimes
|
| gptkbp:originatedIn |
gptkb:13th_century_Italy
|
| gptkbp:purpose |
authentication
copyright protection discouraging counterfeiting |
| gptkbp:relatedTo |
gptkb:intellectual_property
digital rights management security printing |
| gptkbp:type |
digital watermark
physical watermark |
| gptkbp:usedIn |
official documents
postage stamps banknotes videos digital images passports |
| gptkbp:visibleToNakedEye |
sometimes
|
| gptkbp:bfsParent |
gptkb:Caroline_Shaw
gptkb:Joseph_Brodsky |
| gptkbp:bfsLayer |
4
|