Has each of CrossID tags got a unique signature ID?
Not necessarily, CrossID tags are very similar to Barcode, capable of storing digital information to agreed rules so, at destination, all the same razors or shampoos details can be retrieved simply by the computer and sensor system working to agreed rules to ‘read’ the bunch code. The computer system does not have to distribute records of every individual tag. There can be “check” digits and other techniques for the elimination of errors, collisions or duplications.