Public-domain-equivalent license

Public-domain-equivalent license are licenses that grant public-domain-like rights and/or act as waivers. They are used to make copyrighted works usable by anyone without conditions, while avoiding the complexities of attribution or license compatibility that occur with other licenses. No permission or license is required for a work truly in the public domain, such as one with an expired copyright; such a work may be copied at will. Public domain equivalent licenses exist because some legal jurisdictions do not provide for authors to voluntarily place their work in the public domain, but do allow them to grant arbitrarily broad rights in the work to the public. The licensing process also allows authors, particularly software authors, the opportunity to explicitly deny any implied warranty that might give someone a basis for legal action against them. While there is no universally agreed-upon license, several licenses aim to grant the same rights that would apply to a work in the public domain. In 2000, the "Do What the Fuck You Want To Public License" (WTFPL) was released as a public-domain-equivalent license for software. It is distinguished among software licenses by its informal style and lack of a warranty disclaimer. In 2016, according to Black Duck Software, the WTFPL was used by less than 1% of FOSS projects. In 2009, Creative Commons released CC0, which was created for compatibility with jurisdictions where dedicating to public domain is problematic, such as continental Europe. This is achieved by a public-domain waiver statement and a fall-back all-permissive license, for cases where the waiver is not valid. The Free Software Foundation and the Open Knowledge Foundation approved CC0 as a recommended license to dedicate content to the public domain. The FSF and the Open Source Initiative, however, do not recommend the usage of this license for software due to inclusion of a clause expressly stating it does not grant patent licenses. In June 2016 an analysis of the Fedora Project's software packages placed CC0 as the 17th most popular license.

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Concepts associés (19)

Cours associés (4)

Séances de cours associées (56)

MATH-410: Riemann surfaces

This course is an introduction to the theory of Riemann surfaces. Riemann surfaces naturally appear is mathematics in many different ways: as a result of analytic continuation, as quotients of complex

DH-405: Foundations of digital humanities

This course gives an introduction to the fundamental concepts and methods of the Digital Humanities, both from a theoretical and applied point of view. The course introduces the Digital Humanities cir

CS-448: Sublinear algorithms for big data analysis

In this course we will define rigorous mathematical models for computing on large datasets, cover main algorithmic techniques that have been developed for sublinear (e.g. faster than linear time) data

Public-domain-equivalent license

Copyleft

vignette|droite|Le symbole du copyleft, avec un C réfléchi (ouvert à gauche), est l’« opposé » du copyright (C ouvert à droite). Le copyleft (🄯), parfois traduit comme gauche d'auteur ou copie laissée, est l'autorisation donnée par l'auteur d'un travail soumis au droit d'auteur (œuvre d'art, texte, programme informatique ou autre) d'utiliser, d'étudier, de modifier et de diffuser son œuvre, dans la mesure où cette même autorisation reste préservée.

Free-software license

A free-software license is a notice that grants the recipient of a piece of software extensive rights to modify and redistribute that software. These actions are usually prohibited by copyright law, but the rights-holder (usually the author) of a piece of software can remove these restrictions by accompanying the software with a software license which grants the recipient these rights. Software using such a license is free software (or free and open-source software) as conferred by the copyright holder.

Bots: Wikipédia Wikification HUM-369: Digital humanities

Plonge dans le rôle des bots dans Wikipedia, leur wikification du contenu du domaine public et les controverses entourant leur utilisation.

Homologie des surfaces de Riemann MATH-410: Riemann surfaces

Explore l'homologie des surfaces de Riemann, y compris l'homologie singulière et le standard n-simplex.

Graph Sketching : Composants connectés CS-448: Sublinear algorithms for big data analysis

Couvre les croquis graphiques et les composants connectés dans les modèles de streaming.