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The Owner-Free File System (''OFF System'', or ''OFF'' for short) is a peer-to-peer distributed file system in which all shared files are represented by randomized multi-used data blocks. Instead of anonymizing the network, the data blocks are anonymized and therefore, only data garbage is ever exchanged and stored and no forwarding via intermediate nodes is required. ''OFF'' claims to have been created with the expressed intention "to cut off some gangrene-infested bits of the copyright industry."〔(OFF System )〕 ==History== ''OFF'' development started within the hacktivism group (The Big Hack ) in 2003 by the hackers Cheater512, CaptainMorgan, Aqlo and WhiteRaven. In 2004, a rudimentary version was finished, written in PHP, which was distributed as two demo CDs. Following these, SpectralMorning re-implemented the functionality in 2004 in C++, which lead to the current "mainline" ''OFF'' client. On August 14, 2006, CaptainMorgan posted a letter of "closing" addressed to the "Copyright Industry Associations of America", such as the RIAA and MPAA, stating that they have created ''OFF'' with the purpose of ending "all of your problems with consumer copyright infringement."〔http://thebighack.org/modules.php?op=modload&name=News&file=article&sid=622&mode=nested&order=0&thold=0 "Closing Letter to the Copyright Industry Associations of America" - presenting the public release of the OFF System〕 In 2008, the network consisted of around 50 nodes. On April 11, 2008, a beta test was held〔http://board.planetpeer.de/index.php/topic,4407.0.html Beta test announcement for 2008-04-11 of planetpeer.de and OFF developer Spectral Morning〕 with a network size of over 100 nodes. Since SpectralMorning stopped work on ''OFF'' in late 2008, only minor bug fix releases were made to mainline ''OFF''. Starting from 2007, an alternative, but compatible client was developed, called BlocksNet. Written in Ruby and well-maintained, it saw major improvements over recent time. It has been under development until 2011.〔http://blocksnet.sf.net〕 The client OFFLoad is a fork from mainline ''OFF'', which seemingly adds no features. Reasons for the fork are unclear. Another distantly related program is (Monolith ), which uses a similar principle to ''OFF''. It was created after ''OFF'' and features no multi-use of blocks and no networking. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「OFFSystem」の詳細全文を読む スポンサード リンク
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