METHOD AND SYSTEM OF EVIDENCE PRESERVATION FOR DIGITAL DOCUMENTS
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United States of America Patent
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Issued Date -
Apr 24, 2014
app pub date -
Dec 23, 2011
filing date -
Dec 14, 2011
priority date (Note) -
Abandoned
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Abstract
This application provides a method and system of evidence preservation for digital documents. The method comprises: converting, by a client, the digital document to a document code, which is uniquely corresponding to the digital document; uploading, from the client, the document code and first attribute information of the client to a server, wherein the first attribute information includes user information and geographical position information of the client; and incorporating, by the server, second attribute information into the document code and the first attribute information to form a code file, and preserving the code file in a code file database of the server, wherein the second attribute information includes time information indicating when the document code is received by the server; wherein when contents of the digital document are changed, contents of the document code are changed accordingly.
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