Statements (25)
Predicate | Object |
---|---|
gptkbp:instanceOf |
Security feature
|
gptkbp:createdBy |
Digital overlay
Varying paper thickness |
https://www.w3.org/2000/01/rdf-schema#label |
Watermarks
|
gptkbp:inventedBy |
13th century
|
gptkbp:originatedIn |
gptkb:Italy
|
gptkbp:relatedTo |
Counterfeiting
Document security |
gptkbp:type |
Digital watermark
Traditional watermark |
gptkbp:usedFor |
Authentication
Copyright protection Forgery prevention |
gptkbp:usedIn |
gptkb:newspaper
Official documents Banknotes Passports Digital images Postage stamps |
gptkbp:visibleUnder |
Transmitted light
Certain angles |
gptkbp:bfsParent |
gptkb:Yaron_Zilberman
gptkb:Billy_Crockett gptkb:Indian_Passport |
gptkbp:bfsLayer |
7
|