PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, a digital signature is an integer number that is obtained by a digital signature algorithm applied on a number associated in some prescribed way to the image, and is mainly used to authenticate the origin and integrity of the message or image whereas, digital watermarks are data hidden in, or more generally modifying, the pixels of the image file.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com