OriginStamp is a free and anonymous trusted time-stamping service. It allows users to prove that they were the originator of a piece of information (e.g. text or media file) at a certain time. By uploading a file to the main window, OriginStamp will calculate its SHA256 Hash, which can then be sent to the originstamp.org server, and permanently stored on the blockchain.
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A free program for Mac, by Pocket Bits LLC.
