CASRAI Dictionary

Tag: nonprofit preprint server

  • How to Choose a Preprint Server: A Framework

    Choosing a preprint server is a decision about five factors, not one: screening policy, licensing terms, persistent-identifier assignment, indexing reach, and journal-submission integration. A preprint server is an online repository that makes a research manuscript publicly available before formal peer review, typically assigning a DOI and an open licence so the work is citable immediately. Matching those five factors to a discipline, a funder mandate, and a target journal’s policy is what separates a defensible institutional recommendation from “just use bioRxiv.”

    What is a preprint server?

    A preprint server is a repository, usually free to use, that publishes a manuscript version before it has completed formal peer review. Unlike a personal website or an institutional repository, a genuine preprint server performs basic screening, assigns a persistent identifier, and makes the work discoverable through indexing services and search engines.

    The category now spans general-purpose infrastructure (arXiv, OSF Preprints), discipline-specific platforms (bioRxiv, medRxiv, ChemRxiv, PsyArXiv, SocArXiv), and publisher-operated services (SSRN, Research Square). Each applies a different mix of screening, licensing, and indexing — which is exactly why a single “best” answer does not exist.

    Which five criteria actually differentiate preprint servers?

    Most comparisons stop at subject scope. A more useful framework adds four operational criteria that determine whether a preprint actually functions as a citable, fundable, publishable output.

    • Screening policy. Every reputable server checks for plagiarism, offensive or non-scientific content, and (for health research) potential public-harm risk. medRxiv applies the strictest clinical-harm review of the major platforms, reflecting the direct patient-facing risk of unreviewed medical claims.
    • Licensing. Authors typically retain copyright but must grant a distribution licence. Options range from CC0 and CC BY through to CC BY-NC-ND or a non-exclusive posting licence with no reuse rights. cOAlition S’s Plan S rights-retention strategy specifically favours CC BY preprints, so funder compliance can hinge on this single field.
    • Persistent-identifier assignment. A DOI — usually registered through DataCite or Crossref — is what makes a preprint permanently citable and trackable through Altmetric and citation indexes. Not every platform assigned DOIs from launch; arXiv began registering DOIs for new submissions via DataCite only in 2022, decades after its 1991 founding at Cornell University.
    • Indexing and discoverability. Google Scholar indexes most major servers, but subject-specific indexing varies: medRxiv and bioRxiv preprints are only selectively surfaced in PubMed and PubMed Central, while SSRN content feeds RePEc for economics.
    • Journal-submission integration. Direct-transfer tools — such as bioRxiv’s “B2J” (bioRxiv-to-journal) pipeline — let authors submit straight from the preprint record, cutting duplicate uploads and formatting work.

    How do the major preprint servers compare?

    The table below summarises governance, screening, and identifier practice across the platforms institutions most commonly encounter. Details change; always confirm current policy on the platform itself before advising a researcher.

    Server Primary field Governance Screening Licence options PID / indexing
    arXiv Physics, maths, CS, quantitative biology Cornell University Library (non-profit); founded 1991 Moderator scope/format check Non-exclusive licence or CC BY/CC BY-NC-SA DataCite DOI (since 2022); Google Scholar, Semantic Scholar
    bioRxiv Biology, life sciences openRxiv, an independent non-profit launched in 2024 to steward bioRxiv and medRxiv Staff/advisor plagiarism and ethics check CC BY, CC BY-NC, CC BY-ND, or no reuse DOI on posting; Google Scholar, selective PubMed Central
    medRxiv Health and clinical sciences openRxiv, with BMJ and Yale as founding partners; launched 2019 Additional clinical-harm review beyond bioRxiv’s checks CC BY, CC BY-NC, CC BY-ND, or no reuse DOI on posting; explicit “not for clinical guidance” disclaimer
    SSRN Social sciences, economics, law Elsevier (for-profit; acquired 2016) Light editorial review Author retains copyright under SSRN’s posting terms Unique SSRN ID; feeds RePEc, Google Scholar
    ChemRxiv Chemistry Operated with the American Chemical Society and partner chemistry societies Technical and ethics moderation CC BY, CC BY-NC, CC0 DataCite DOI; indexed by CAS, Google Scholar
    Research Square Multidisciplinary; “In Review” journal integration For-profit, partnered with Springer Nature Basic format/ethics check CC BY and other CC variants DOI on posting; linked directly to journal submission systems
    Preprints.org Multidisciplinary Operated by MDPI Editorial screening, typically within days CC BY by default DOI via Crossref; Google Scholar indexed

    Which preprint server fits your discipline?

    Discipline norms still drive the first cut of any decision. Physicists, mathematicians, and computer scientists default to arXiv because that is where the citation graph and community feedback already live. Life scientists post to bioRxiv, and clinical researchers use medRxiv precisely because of its stricter harm-review layer. Economists, legal scholars, and business researchers rely on SSRN’s established readership, while chemists increasingly use ChemRxiv because of its direct society backing.

    Researchers working across disciplines, or without an obvious subject-specific home, should consider general-purpose infrastructure such as OSF Preprints or a multidisciplinary commercial platform such as Preprints.org — provided the licensing and screening terms still meet funder requirements.

    What should research offices check before recommending a server?

    Research-administration and library staff advising faculty need a repeatable checklist, not a single favourite platform:

    1. Does the target journal’s policy permit prior posting on this specific server? The ICMJE Recommendations state that posting a preprint does not constitute prior publication for most biomedical journals, but individual journal policies can still vary.
    2. Does the licence offered satisfy the researcher’s funder mandate — for example, UKRI’s or cOAlition S’s preference for CC BY on outputs arising from funded grants?
    3. Will the platform assign a DOI immediately, and is that DOI registered with DataCite or Crossref for downstream citation tracking?
    4. Is the server listed in a recognised directory — such as COAR’s Directory of Open Access Preprint Repositories or the ASAPbio preprint server list — that documents its screening and governance practices?
    5. Does the platform provide version control that clearly links a preprint to its eventual peer-reviewed publication?

    COPE guidance reinforces that editors and authors should treat preprint disclosure transparently in submission and review workflows, which makes documented screening and licensing practice — not brand recognition — the correct basis for an institutional recommendation.

    Common questions about preprint servers

    What is a preprint server?

    A preprint server is a repository that publishes a research manuscript before formal peer review, applying basic screening, assigning a persistent identifier such as a DOI, and making the work openly discoverable. It differs from a personal or institutional webpage by offering structured metadata, licensing, and indexing.

    What are the disadvantages of preprints?

    Unreviewed findings can be misreported by media before validation, negative public comments can occur before formal review, and posting adds an extra step to the publication timeline. In clinical fields, this is why medRxiv carries an explicit disclaimer against using preprints to guide clinical practice.

    Which is the best preprint server?

    There is no single best server — the right choice depends on discipline, target-journal policy, funder licensing requirements, and whether journal-submission integration matters. arXiv, bioRxiv, medRxiv, ChemRxiv, and SSRN each dominate a different subject area rather than competing directly.

    How does a preprint differ from peer review?

    A preprint has passed only basic screening for plagiarism and scope, while peer review involves independent experts formally assessing methodology, evidence, and conclusions. Peer review certifies a paper for a journal; a preprint server does not — it only makes a manuscript public and citable ahead of that certification.

    What this means for researchers and institutions

    Preprint infrastructure is consolidating around named, accountable stewardship rather than informal hosting. openRxiv’s 2024 launch as an independent non-profit overseeing bioRxiv and medRxiv is a governance signal research offices should track, alongside continuing publisher involvement through SSRN (Elsevier) and Research Square (Springer Nature). Neither model is inherently wrong, but each carries different long-term sustainability and independence trade-offs that belong in any institutional recommendation, not just in the author’s personal choice.

    For research administrators, the practical output of this framework is a short internal guidance note: name the approved server per discipline, confirm its licence matches funder mandates, and confirm its DOI and indexing practice before telling researchers where to post. That single document does more to reduce compliance risk than any general preprint policy statement.

    For related definitions and standards context, see the CASRAI Dictionary and guidance for research administration teams building institutional open-research policy.

  • Research Square vs bioRxiv: Ownership & Fees

    Research Square vs bioRxiv is, at its core, a nonprofit-versus-commercial question: Research Square is a preprint platform owned by the for-profit publisher Springer Nature, while bioRxiv and medRxiv are nonprofit servers now governed by openRxiv, an independent 501(c)(3) that took over from Cold Spring Harbor Laboratory (CSHL) in March 2025. Both are free for authors to use, but the ownership structure behind each one shapes fees, licensing control, data governance and long-term archival continuity in ways that matter for anyone advising authors on where to post.

    A preprint server is an online platform where researchers deposit manuscripts before, or independently of, formal peer review. Research Square, bioRxiv and medRxiv are three of the most widely used servers in the life, health and biomedical sciences, and authors are increasingly asked to choose between them without understanding what sits behind each brand.

    What Is the Core Difference Between Research Square and bioRxiv?

    The core difference is legal ownership and mission accountability, not scope or screening rigour. Research Square traces to American Journal Experts (AJE); Springer Nature took a minority stake in the Research Square platform in 2018, became majority owner in 2020, and completed full acquisition of Research Square Company in 2022. It is, today, a wholly commercial subsidiary of a for-profit publishing group.

    bioRxiv was founded in 2013 by John Inglis and Richard Sever at CSHL, a nonprofit research institution. medRxiv followed in 2019 as a partnership between CSHL, Yale University and BMJ. In March 2025, governance of both servers passed from CSHL to openRxiv, a newly formed independent nonprofit whose stated mission is “creating opportunities for sharing, discovering, and advancing preprints in the life and health sciences” — with a dedicated board and a Scientific and Medical Advisory Board of researchers overseeing policy.

    Feature Research Square bioRxiv / medRxiv (via openRxiv)
    Governing entity Springer Nature (for-profit publisher) openRxiv (independent nonprofit, 501(c)(3))
    Platform launched 2016, under Research Square Company bioRxiv 2013; medRxiv 2019
    Ownership shift Minority stake 2018 → majority 2020 → full acquisition 2022 Transitioned from CSHL to independent nonprofit, March 2025
    Author posting fee Free Free
    Sustainability model Cross-subsidised by Springer Nature publishing and AJE author-services revenue Philanthropic and institutional grants (Chan Zuckerberg Initiative, Sergey Brin Family Foundation, Robert Lourie Foundation, partner universities)
    Default licence CC-BY 4.0 required for all preprints Author’s choice: CC0, CC-BY, CC-BY-NC, CC-BY-ND, CC-BY-NC-ND, or no reuse without permission
    Journal integration In Review, tied to 1,000+ participating journals No equivalent journal-submission integration
    Bulk text-and-data-mining access No published bulk TDM programme; access via Crossref metadata and the site Monthly XML/PDF corpus via a requester-pays AWS S3 bucket, plus a public metadata API
    Long-term preservation Portico Portico

    Who Pays, and How Is Each Platform Funded?

    Neither model charges authors to post a preprint — that much is identical. What differs is where the money to run the platform comes from, and what that implies about future incentives. Research Square’s operating costs are absorbed by Springer Nature’s commercial publishing business and by AJE’s paid author-services division (editing, translation and related products), which Research Square continues to cross-sell alongside free preprint posting.

    openRxiv, by contrast, depends on renewable philanthropic and institutional grants rather than a parent company’s revenue. Its principal funders include the Chan Zuckerberg Initiative, the Sergey Brin Family Foundation, the Robert Lourie Foundation and a consortium of supporting universities including Caltech, MIT, Stanford, Yale and the University of Washington. That is a genuine trade-off, not a straightforward win for either side:

    • Research Square’s commercial backing gives it predictable, revenue-linked funding, but ties its long-term direction to Springer Nature’s corporate strategy.
    • openRxiv’s nonprofit funding is mission-locked by governance structure, but depends on grant renewal cycles rather than a guaranteed revenue stream.

    Who Owns and Controls Author Data?

    Ownership of the underlying manuscript stays with authors on both platforms — this is not a copyright grab by either side. The meaningful difference is licensing control and third-party data access. Research Square requires every posted preprint to carry a CC-BY 4.0 licence, which is the most permissive open licence and maximises reuse rights for readers, but leaves authors no choice in the matter.

    bioRxiv and medRxiv give authors a menu of licence options — CC0, CC-BY, CC-BY-NC, CC-BY-ND, CC-BY-NC-ND, or a “no reuse without permission” setting — and authors can change the licence on an existing preprint after posting. That is more author control, though funders that mandate CC-BY (a growing norm, including under several cOAlition S-aligned policies) require authors to actively select it rather than receiving it by default.

    The two models also diverge sharply on bulk data access. openRxiv publishes a full monthly XML/PDF text-and-data-mining corpus through a requester-pays AWS S3 bucket, alongside a public metadata API — an open-infrastructure commitment consistent with nonprofit, grant-funded governance. Research Square does not publish an equivalent bulk TDM feed; third-party discovery of Research Square content runs through Crossref DOI metadata and the platform’s own search interface rather than a dedicated open corpus.

    What Long-Term Archival Guarantees Does Each Model Offer?

    Both platforms use the same third-party preservation service: Portico provides perpetual-access archiving for preprints posted to Research Square, bioRxiv and medRxiv alike, so the archive itself is not where the two models diverge.

    The real difference is organisational continuity risk. A commercial platform’s archival commitments are ultimately corporate policy that could change with ownership or strategy; a nonprofit platform’s commitments are set by a mission-bound board, though it carries the separate risk of grant-funding renewal. Advising authors on a multi-decade preprint record means treating “who governs the archive” as distinct from “where is the archive stored.”

    Common Questions About Research Square and bioRxiv

    Is bioRxiv reputable?

    Yes. bioRxiv is widely cited across molecular and cell biology, screens submissions for plagiarism and non-scientific content, and is now governed by openRxiv, an independent nonprofit with a Scientific and Medical Advisory Board. Its reputation rests on community adoption and transparent, nonprofit governance rather than commercial incentives.

    Does bioRxiv count as published?

    No. A bioRxiv or medRxiv preprint is not peer-reviewed and does not constitute formal publication. The ICMJE treats preprints as legitimate scholarly communication, not duplicate publication, but funders and REF-style assessment exercises generally still require the peer-reviewed version for compliance credit.

    Is bioRxiv a preprint?

    bioRxiv is not itself a preprint — it is the server that hosts preprints. A preprint is the individual manuscript version posted before or independent of peer review; bioRxiv is the nonprofit infrastructure, now under openRxiv, that makes that posting possible for life-science research.

    What are the alternatives to bioRxiv?

    Alternatives include medRxiv for clinical and public-health research, Research Square for multidisciplinary and journal-integrated posting, and repository-style options such as arXiv, the Open Science Framework, Figshare and Zenodo. The right choice depends on discipline, human-subjects status and whether journal-integrated posting matters.

    What This Means for Authors and Research Administrators

    For most authors, the nonprofit-versus-commercial distinction will not change whether posting is free — it usually is, on both models. It should change how administrators frame the advice they give:

    • Explain that Research Square’s mandatory CC-BY licence maximises reuse but removes licensing choice, while bioRxiv/medRxiv give authors more control over which licence applies.
    • Flag that researchers doing large-scale corpus analysis will find far richer bulk access through openRxiv’s TDM feeds than through Research Square.
    • Note that archival preservation (Portico) is equivalent across models — the open question is who controls future platform policy, not the archive.
    • Treat commercial ownership as a disclosure point, not a disqualifier: Springer Nature’s backing gives Research Square’s In Review workflow journal-integration value a nonprofit model does not replicate.

    As more research administration offices build formal preprint guidance into their researcher-facing documentation, the originating business model behind a server deserves the same disclosure as its discipline coverage or screening depth. Authors are entitled to know not just where their manuscript will sit, but who ultimately governs the platform holding it — a nonprofit board answerable to a research mission, or a commercial parent answerable to shareholders.

    Last updated: 3 July 2026.