The CORSIKA project very much welcomes all collaboration and contributions. The aim of the CORSIKA project is to create a scientific software framework as a fundamental tool for research. The collaborative agreement and licinsing scheme are based on the guidelines layed out by HSF [[1]](https://hepsoftwarefoundation.org/activities/licensing.html)and CERN [[2]](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwiLqKG00dXdAhUOZFAKHdIwAh4QFjAAegQIARAC&url=https%3A%2F%2Findico.cern.ch%2Fcategory%2F4251%2Fattachments%2F101%2F505%2FOSL-2012-01-Open_Source_Licences_at_CERN-Short_version.pdf&usg=AOvVaw1n4S0PQCSeE6wbdfdhKDqF), [[3]](http://legal.web.cern.ch/licensing/software), and follow the examples of other big scientific software projects.
The CORSIKA project very much welcomes all collaboration and contributions. The aim of the CORSIKA project is to create a scientific software framework as a fundamental tool for research. The collaboration agreement and the licinsing model are based on the guidelines layed out by HSF [[1]](https://hepsoftwarefoundation.org/activities/licensing.html)or CERN [[2]](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwiLqKG00dXdAhUOZFAKHdIwAh4QFjAAegQIARAC&url=https%3A%2F%2Findico.cern.ch%2Fcategory%2F4251%2Fattachments%2F101%2F505%2FOSL-2012-01-Open_Source_Licences_at_CERN-Short_version.pdf&usg=AOvVaw1n4S0PQCSeE6wbdfdhKDqF), [[3]](http://legal.web.cern.ch/licensing/software), and follow the examples of other big scientific software projects.
The CORSIKA project consists of the contributions from the scientific community and individulas in a best effort to deliver the best computing performance and physics output possible.
The CORSIKA project consists of the contributions from the scientific community and individulas in a best effort to deliver the best possible computing performance and physics output.
## The software license of the CORSIKA project
## The software license of the CORSIKA project
The license adopted by the CORSIKA project is the explicit coyleft licencse GPLv3, as copyied in full in the file [LICENSE](LICENSE). Each source file of the CORSIKA project contains a short statement of the copyright and license. The code, documentation and content in the folder [ThirdParty](ThirdParty) is not part of the CORSIKA project and can be based on other licences. Check the content of this folder for details. It depends on the configuration of the build system to what extend this code is used to build CORRSIKA.
The license adopted for the CORSIKA project is the explicit copyleft licencse GPLv3, as copyied in full in the file [LICENSE](LICENSE). Each source file of the CORSIKA project contains a short statement of the copyright and this license. The code, documentation and content in the folder [ThirdParty](ThirdParty) is not integral part of the CORSIKA project and can be based on or include other licences. Check the content of this folder for details. It depends on the configuration of the build system to what extend this code is used to build CORSIKA.
## Definition of coyright holder
## Definition of coyright holder
For legal reasons and the ability to maintin the CORSIKA project effectively over a very long lifespan of several decades, all contibuters are required to yield their copyright to the CORSIKA project, and it decision making stucture, as defined in this document.
For legal reasons and the ability to maintin the CORSIKA project effectively over a very long lifespan of several decades, all contibuters are required to transfer their copyright to the CORSIKA project. Of course you will be duly credited and your name will appear on the contributors page and in the [AUTHORS](AUTHORS) file shipped with every binary and source distribution. The copyright transfer is necessary for us to be able to effectively defend the project in case of litigation. The copyright holder can change with time, which is decided by the "CORSIKA board". The current copyright holder is the "CORSIKA board", contact address: ralf.ulrich@kit.edu.
## Definition of a contributor, and software author
## Definition of a contributor, and software author
All contributors will be co-listed as software authors of the CORSIKA project, and listed indefinitely in the [AUTHORS](AUTHORS) file. Contributors should add their name and contact data to the AUTHORS file.
All contributors will be co-listed as software authors of the CORSIKA project, and listed indefinitely in the [AUTHORS](AUTHORS) file. Contributors should add their name and contact data to the [AUTHORS](AUTHORS) file.
## Definition of a scientific author
## Definition of a scientific author
The scientific authors of the CORSIKA project must be named in any scientific context, for example in talks, proceedings, posters, journal paper or any other publication or outreach document. Scientific authors or contributors are listed in [SCIENTIFIC_AUTHORS](SCIENTIFIC_AUTHORS). Individuals are only listed as scientific authors if the Collaboration decides, and any such decision can be revisited at any time. A scientific contribution can be agreed to be linked to any activity, which can also have an end date assigned. Thus, the list of scientific authors change with time, and reflects the group of individuals that actually contributed in a specific state of the CORSIKA project. For specific scientific publications, the list of scientific authors can also be extended beyond SCIENTIFIC_AUTHORS for any reasons, when the Collaboration decides so.
The scientific authors of the CORSIKA project must be named in any scientific context, for example in talks, proceedings, posters, journal paper or any other publication or outreach document. Scientific authors or contributors are listed in [SCIENTIFIC_AUTHORS](SCIENTIFIC_AUTHORS). Individuals are only listed as scientific authors if the Collaboration board decides, and any such decision can be revisited or revoked at any time by the CORSIKA board. The list of scientific authors change with time, reflecting the active group of individuals that actually contribute to a specific state of the CORSIKA project. For specific scientific publications, the list of scientific authors can also be extended beyond SCIENTIFIC_AUTHORS by the CORSIKA board, for example to highlight important input on physics, technology or modelling.
## Collaboration committee
## Definition and working mode of the CORSIKA board
The CORSIKA board consists of individuls who have .....
## Accepting new contributors, and authors
## Accepting new contributors, and authors
The CORSIKA board can accept new scientific authors to be added to [SCIENTIFIC_AUTHORS](SCIENTIFIC_AUTHORS), or remove them from there. Agreement to be scientific author can be linked to a temporary task or assignment. Not compliance with the GUIDELINES, or inactivity are reasons to be removed from the list.
## Changing to a different license, for parts or the complete project
## Changing to a different license, for parts or the complete project
The CORSIKA board can change the license for parts or the entire project.
## Deciding and planning releases
## Deciding and planning releases
The Collaboration board decides on any change to the Collaboration agreement, any design decision, as well as all software releases.
The CORSIKA board decides on any change to the Collaboration agreement, about design choices, as well as all software releases and scientific publications.
