Secure Barcode

Excerpt from the patent specification:

FIG. 12 depicts the primary relationships between a series of relational databases which may be used by such a company. One useful feature is that of providing a password storage database related to other relevant databases so as to allow password-protection of target reference documents and other reference materials. In this way, a decoding party must first log-in to a password-protected site to gain access to a URL that is the URL of a reference. Thus, an authorized recipient can properly decode such a referential chromocode, but an unauthorized party is unable to retrieve the references that give meaning to the chromocode.

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