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