Copyright Policy
Last updated: 2026-10-31.
Authors keep their copyright
Sophaxis asks for no transfer of copyright and no exclusive licence. The work stays under the licence the authors gave it in the repository.
What Sophaxis copies, and on what basis
Titles, author names, licences and dates come from the DOI metadata, which DataCite and Crossref make openly available for reuse; for Jxiv, they come from the public metadata of JaLC. The abstract is part of the work. It is shown under the work's own licence, with its authors and a link to the work.
Sophaxis keeps an unmodified copy of the PDF of each listed version, so that search engines can index the full text. It copies the file only from a repository that lets a script fetch it: Zenodo, Figshare, arXiv and Research Square. Where the repository publishes a checksum, the copy must match it. When a deposit holds more than one PDF, Sophaxis does not guess which one is the paper, and makes no copy. For any other repository, the authors can attach the deposited PDF to their submission issue. Sophaxis then keeps that file unmodified, and the record says that the authors provided it. Without such a file, the record links to the repository only. A copy is kept only if the file is at most 20 MB, and only while all the copies together stay within 1 GB. A larger file stays at its repository, and the record links to it.
The copy is the file the authors deposited, shared under the work's own licence, with its authors, its licence and a link to the original. The accepted licences allow this. Authors can ask for the copy to be removed; the record then links to the repository only.
Each week, Sophaxis asks the Internet Archive to save its pages and the PDF copies, so that they stay readable even if this site goes away.
Every record page carries the citation tags that Google Scholar reads. Sophaxis does not control whether or when a search engine indexes a page.
How Sophaxis meets the licences
Sophaxis shares a listed work only under the work's own licence, and only as that licence allows. The three accepted licences permit copying and sharing for any purpose, provided the work is credited.
- Credit: every record page names the authors and the title, names the licence with a link to it, and links to the work by its DOI.
- No changes: the PDF copy is the deposited file, byte for byte, with every notice it carries. The abstract is shown as plain text, with formatting tags removed and its words unchanged.
- No added terms: Sophaxis adds no condition and no technical measure that would restrict what the licence allows readers to do.
- No endorsement: nothing on Sophaxis says or suggests that the authors endorse Sophaxis or its use of their work.
Work published in a journal
When a journal publishes a work, the copyright or an exclusive licence may pass to the publisher. The authors must then make sure that the version they deposited may be shared under its licence. If it may not, the work cannot be listed.
Material from others
Figures, tables, long quotations and other material from others need permission, or must be used in a way the law allows, such as quotation. The authors are responsible for this.
Examples of what is not allowed
These examples show how this policy applies. They are not a complete list.
The version that is shared:
- Depositing the publisher's typeset version under CC BY when the copyright went to the publisher. The authors can no longer license it.
- Depositing an accepted manuscript before the embargo that the publisher sets has ended.
- Attaching to the submission issue a PDF that differs from the deposited file, such as a newer draft, an edited copy or the journal layout. The copy must be the deposited file, unmodified.
- Asking Sophaxis to change its PDF copy. A change is a new version in the repository.
Material from others:
- A figure, a table, a map or a photograph copied from a book, a paper or a website without permission, beyond quotation.
- A long passage of another work, quoted at a length that the law of quotation does not cover.
- The full text of a poem, a song or a short story by someone else.
- A translation of someone else's paper, deposited as the authors' own work, or without the permission of the original's rights holder.
- Images from an archive whose terms forbid publishing them again.
- Material under a NonCommercial or NoDerivatives licence, placed inside a work that carries CC BY 4.0, CC BY-SA 4.0 or CC0 1.0 as though it were under that licence.
- A screenshot of software, a web page or a video, reproduced beyond what quotation allows.
Requests:
- Repeating the infringing material itself in a public removal issue. Describe where it is instead.
- Asking Sophaxis to remove a deposit from its repository. Sophaxis cannot; the request goes to the repository.
Infringement
A rights holder who believes that a listed work infringes their rights can ask for its removal under the Takedown Policy.