English [en]   български [bg]   català [ca]   Deutsch [de]   espa?ol [es]   fran?ais [fr]   italiano [it]   日本語 [ja]   ??? [ko]   polski [pl]   português do Brasil [pt-br]   русский [ru]   ????? [ta]   укра?нська [uk]  

Why the FSF gets copyright assignments from contributors

by Professor Eben Moglen, Columbia University Law School

[Explanatory note added in Jan 2013: this point applies to the packages that are FSF-copyrighted. When the developers of a program make it a GNU package, they can decide either to give the copyright to the FSF so it can enforce the GPL for the package, or else to keep the copyright as well as the responsibility for enforcing the GPL. If they make it an FSF-copyrighted package, then the FSF asks for copyright assignments for further contributions, and this page explains why. Additional pertinent explanation.]

Under US copyright law, which is the law under which most free software programs have historically been first published, there are very substantial procedural advantages to registration of copyright. And despite the broad right of distribution conveyed by the GPL, enforcement of copyright is generally not possible for distributors: only the copyright holder or someone having assignment of the copyright can enforce the license. If there are multiple authors of a copyrighted work, successful enforcement depends on having the cooperation of all authors.

In order to make sure that all of our copyrights can meet the recordkeeping and other requirements of registration, and in order to be able to enforce the GPL most effectively, FSF requires that each author of code incorporated in FSF projects provide a copyright assignment, and, where appropriate, a disclaimer of any work-for-hire ownership claims by the programmer's employer. That way we can be sure that all the code in FSF projects is free code, whose freedom we can most effectively protect, and therefore on which other developers can completely rely.


 [FSF logo] “The Free Software Foundation (FSF) is a nonprofit with a worldwide mission to promote computer user freedom. We defend the rights of all software users.”


招财蟾蜍APP 黑龙江十一选五加减算式 黑龙江11选5遗漏 大嘴棋牌官网 澳洲幸运5软件 中彩票三分彩独胆计划 325棋牌游戏正版下载 时时彩开奖是机器开吗 棋牌手游下载安装 花源阅读赚钱是怎样伯 七星彩走势图可下载 大神娱乐官网 双色球中奖规则 宁夏11选5手机助手 腾游娱乐中心官方网站网 巨蟹女会赚钱 幸运赛车开奖走势图