| http://www.w3.org/ns/prov#value | - Hereinafter, the term ???caching system??? is intended to refer to both forward proxies and surrogates. [0016] Content management systems use a content distribution protocol to publish notifications to content servers, and use a protocol such as Hypertext Transfer Protocol (???HTTP???) or File Transfer Protocol (???FTP???) to move content from an authoring machine to a staging server (or to a prod
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