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Method for tracking software lineages

  • US 20050149451A1
  • Filed: 12/30/2004
  • Published: 07/07/2005
  • Est. Priority Date: 12/15/1992
  • Status: Active Grant
First Claim
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1. A method for determining whether a portion of a digital product has been copied, the method comprising:

  • calculating a footprint for a digital product to produce a calculated footprint;

    determining whether a purchasing event has occurred;

    comparing the calculated footprint with a stored footprint; and

    determining that the digital product has been copied when the calculated footprint differs from the stored footprint and the purchasing event has not occurred.

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