For repositories and DOI registration agencies

Last updated: 2026-10-31.

This page is addressed to the repositories whose deposits Sophaxis lists, and to the agencies that register their DOIs. It says what Sophaxis reads from your services, how often, and what it does with it.

The repositories listed

• Zenodo: DOIs beginning 10.5281/zenodo.
• Figshare: DOIs beginning 10.6084/m9.figshare.
• OSF Preprints: DOIs beginning 10.31219/osf.io/
• SocArXiv: DOIs beginning 10.31235/osf.io/
• MetaArXiv: DOIs beginning 10.31222/osf.io/
• arXiv: DOIs beginning 10.48550/arXiv.
• Preprints.org: DOIs beginning 10.20944/preprints
• SSRN: DOIs beginning 10.2139/ssrn.
• Research Square: DOIs beginning 10.21203/rs.3.rs-
• SciELO Preprints: DOIs beginning 10.1590/SciELOPreprints.
• Qeios: DOIs beginning 10.32388/
• ScienceOpen Preprints: DOIs beginning 10.14293/PR2199.
• Advance: DOIs beginning 10.31124/advance.
• KC Works: DOIs beginning 10.17613/
• Jxiv: DOIs beginning 10.51094/jxiv.

A work is listed only if its authors submit it, and only if its DOI metadata carries CC BY 4.0, CC BY-SA 4.0 or CC0 1.0. Sophaxis does not harvest or mirror any repository.

What Sophaxis reads

• The DOI metadata of a submitted work, from the public REST APIs of DataCite, Crossref and, for Jxiv, JaLC: once when the work is submitted or its issue is edited, and once a week for each listed DOI, to confirm that it still resolves and keeps its licence.
• The list of versions of a work, from the same metadata.
• The PDF of a version, unmodified, only where the work's licence allows it and the repository offers it to scripts (Zenodo, Figshare, arXiv and Research Square), through their public APIs or download addresses. This happens once per version, when the operator starts it by hand. Where the repository publishes a checksum, the copy must match it.

Every request names Sophaxis and its repository in its User-Agent: Sophaxis (https://github.com/cpsbvbng26-dotcom/sophaxis). Sophaxis reads no pages meant for people, and does not get around any limit or block.

What Sophaxis shows

Each record page links to the DOI and names the repository, and asks readers to cite the DOI. The DOI stays the reference; Sophaxis gives no DOIs of its own. The abstract and any PDF copy are shown under the work's own licence, with its authors, as the Copyright Policy sets out.

If something should change

If Sophaxis reads more often than you allow, reads something your terms do not allow, or should stop copying files from your service, tell the operator. Sophaxis will change or stop it. A request about a deposit itself stays with the repository; Sophaxis cannot change or remove a deposit.

Reach the operator through an issue or by email to the address on the operator's ORCID record.

Disclaimer toward repositories and registration agencies

Sophaxis is independent, and is not affiliated with, endorsed by or a partner of any repository or registration agency. A record on Sophaxis is Sophaxis's own description of a deposit; it is not a statement by the repository or the agency. They are not responsible for Sophaxis, for its records, for its moderation, or for any error that Sophaxis introduces when it shows their metadata. Their names identify their services only, and their trademarks belong to them; Sophaxis shows none of their logos. Sophaxis uses each service through its public interfaces and within its published terms, as Sophaxis understands them; where a service says otherwise, Sophaxis follows the service. See also the Disclaimer.

Acknowledgements

Sophaxis exists because these services make research and its metadata openly available. Sophaxis thanks:

• Zenodo, for keeping the deposits and their DOIs
• Figshare, for keeping the deposits and their DOIs
• OSF Preprints, for keeping the deposits and their DOIs
• SocArXiv, for keeping the deposits and their DOIs
• MetaArXiv, for keeping the deposits and their DOIs
• arXiv, for keeping the deposits and their DOIs
• Preprints.org, for keeping the deposits and their DOIs
• SSRN, for keeping the deposits and their DOIs
• Research Square, for keeping the deposits and their DOIs
• SciELO Preprints, for keeping the deposits and their DOIs
• Qeios, for keeping the deposits and their DOIs
• ScienceOpen Preprints, for keeping the deposits and their DOIs
• Advance, for keeping the deposits and their DOIs
• KC Works, for keeping the deposits and their DOIs
• Jxiv, for keeping the deposits and their DOIs
• DataCite, for DOI metadata, openly available under CC0
• Crossref, for DOI metadata, openly available through its REST API
• Japan Link Center (JaLC), for DOI metadata for Jxiv
• ORCID, for public records through its public API, for the identity check
• the Internet Archive, for saved copies of the pages and the PDF copies
• GitHub, for the repository, the submissions and the automatic checks
• Vercel, for serving the site

Thank you to arXiv for use of its open access interoperability.