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  Report: Copyright

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  Copyright Management and Control Systems: Post-Infringement

Post-infringement technologies allow the owners of copyrighted works to identify infringements and thus enhance enforcement of intellectual property rights and encompass systems such as:


Applied to electronic files, steganography refers to the process of hiding information in files that can not be easily detected by users. Steganography can be used by intellectual property owners in a variety of ways. One is to insert into the file a "digital watermark" which can be used to prove that an infringing file was the creation of the copyright holder and not the pirate. Other possibilities are to encode a unique serial number into each authorized copy or file, enabling the owner to trace infringing copies to a particular source, or to store copyright management information.


Agents are programs that can implement specified commands automatically. Copyright owners can use agents to search the public spaces of the Internet to find infringing copies. Although the technology is not yet very well developed full-text search engines allow similar uses.

Copyright Litigation

While not every infringement will be the subject of litigation, the threat of litigation helps keep large pirate operations in check. It helps copyright owners obtain relief for specific acts of infringement and publicly warns others of the dangers of infringement.

browse Report:
    Intellectual Property and the "Information Society" Metaphor
-3   Enforcement: Copyright Management and Control Technologies
-2   Copyright Management and Control Systems: Pre-Infringement
-1   Copyright Management and Control Systems: Metering
0   Copyright Management and Control Systems: Post-Infringement
+1   Problems of Copyright Management and Control Technologies
+2   Recent "Digital Copyright" Legislation: U.S.
+3   Recent "Digital Copyright" Legislation: European Union
Copyright management information
Copyright management information refers to information which identifies a work, the author of a work, the owner of any right in a work, or information about the terms and conditions of the use of a work, and any numbers or codes that represent such information, when any of these items of information are attached to a copy of a work or appear in connection with the communication of a work to the public.