| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWINGS [0035]FIG. 1 illustrates a document including steganographic encoding according to an illustrative implementation of the present invention. [0036]FIG. 2 illustrates an age verification system according to another illustrative implementation of the present invention. [0037]FIG. 3 illustrates image capture and a watermark embedding system. [0038]FIG. 4 illustrates a
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