| http://www.w3.org/ns/prov#value | - The system is preferably operated by a trusted third party. [0009] The present invention may provide a method for on-line and real-time registration of works in electronic format having digital content in which intellectual property rights such as copyright can subside, resulting in a digitally signed, time stamped certificate, the validity of which can be verified on-line through an HTTP user int
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