File:Hashtree timestamping.svg
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Summary
{{Information
|Description = Hash-tree based time-stamping scheme. Capacity is limited by N.
|Source = I (RistoLaanoja (talk)) created this work entirely by myself.
|Date = 2010-01-08
|Author = RistoLaanoja
}}
Licensing
{{PD-self|date=January 2010}}
{{Copy to Wikimedia Commons|bot=Fbot|priority=true|date=March 2012}}