Methods and apparatus for issuing licenses to allow end users to consume digital media content on a user device by responding to licensing requests by determining the number of digital tokens required to license the requested consumption and then issuing the license if the end user's account has a sufficient number of digital tokens.

 
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< Self-contained rights management for non-volatile memory

> Electronic currency, electronic wallet therefor and electronic payment systems employing them

> Method and system for conducting a plurality of cyber-based conventions
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