Time stamping method employing multiple receipts linked by a nonce
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United States of America Patent
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Apr 14, 2009
Grant Date -
N/A
app pub date -
Dec 10, 1999
filing date -
Dec 10, 1999
priority date (Note) -
Expired
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Abstract
A method for time stamping a digital document employs a two-part time stamp receipt. The first part of the time stamp receipt includes identifying data associated with a document and a nonce. The second part of the time stamp receipt includes a time indication and the nonce. The nonce serves as a link between the first and second parts.
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