Patent ID: 9723171
Date: 2017-08-01
CPC Classifications: B41F,B41M,B42D,D21F,D21H,G03G,G06K,G07D,H04N

Claim:
1. A method for generating a verified unique watermark, the method comprising: selecting two or more visible marks to be embedded into paper, wherein each of the selected marks are assigned to a unique roller of a plurality of rollers, each roller having a circumference measurement having a difference from a respective circumference of each other roller, and wherein the difference in circumference is an irrational number; aligning the unique rollers to which the selected marks have been assigned; generating a combined mark from the selected two or more visible marks assigned to the aligned unique rollers, wherein the generated combined mark is produced by the unique rollers patterning the selected marks onto the paper and reflects the difference in circumference being the irrational number; and storing information associated with the generated combined mark and the roll of paper onto which the generated combined mark was patterned.