A system and method for tracking and tracing items that in one aspect comprises generating {HEAD ~ a group} of {TAIL ~ unique codes}, where a unique code is a unique encrypted reference, transferring the group of unique codes to an item marking location, marking items with the unique codes 
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A system and method for tracking and tracing items that in one aspect comprises generating { HEAD ~ a group } of { TAIL ~ unique codes } , where a unique code is a unique encrypted reference , transferring the group of unique codes to an item marking location , marking items with the unique codes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH