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Digital document authentication system

  • US 5,781,629 A
  • Filed: 02/21/1997
  • Issued: 07/14/1998
  • Est. Priority Date: 10/28/1994
  • Status: Expired due to Term
First Claim
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1. A method for processing a plurality of digital documents comprising the step of electronically generating a repository of hashed digital values in the form of a directed acyclic graph having nodes, each node comprising a hash value dependent on at least one of said digital documents, and the repository having a secured value comprising a hash value derived from more than one of said digital documents and generating a location pointer in the repository for one of the plurality of digital documents and naming said one digital document to provide a self-verifying name for said one digital document.

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