| 摘要 |
The exemplary embodiment of the present invention provides a way for low-volume mailers to track individual outbound mail pieces, including tracking of individual U.S. Postal Service FIRST-CLASS MAIL(R) letters. The exemplary embodiment of the present invention encodes a unique mail piece tracking identifier as a CONFIRM(R) service identifier in a graphic symbology. The unique mail piece tracking identifier of the exemplary embodiment of the present invention conforms with requirements of a CONFIRM(R) service identifier, while at the same time, provides, for a defined period of time, mail-piece-level uniqueness for first class and other mail class mail piece tracking.
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