All users must be registered to JSTAT. Registration gives access to your personal pages for all the roles you have for the Journal (author, referee, editor). There you can perform all the actions connected with the different stages of the editorial procedure. Registration is easy and free of charge. To register you need to fill in the form on the JSTAT home page with the following data:

• Username
• Password
• First Name
• Last Name
• E-mail
• Institution

You can sign in to JSTAT either by using your JSTAT username and password or via your ORCID account. If you sign in via your ORCID account, you will be requested to enter your JSTAT username and password only the first time in order to correctly connect your ORCID and JSTAT accounts.

If you are registered to JSTAT but cannot remember your username and password, please do not register again, just click on "Forgot your username?"/"Forgot your password?" on the JSTAT home page.

After signing in you can update your profile, change username and password and connect your JSTAT account to your ORCID account by clicking on "modify my personal data".

ORCID iDs are 16-digit numbers which will usually be presented in the form of a web address that leads to the researcher's profile, for example http://orcid.org/0000-0002-8534-5985. They provide a persistent digital identifier that distinguishes you from every other researcher. Associating your ORCID iD to your JSTAT profile helps JSTAT to keep your personal records correctly updated for all the roles you play in the Journal (author, editor, referee, ...).

For information on the status of your submission please use the "write to editor" button, available at the bottom of the preprint page on your Author pages. Please ALWAYS use the "write to..." email buttons instead of normal e-mail so that these messages may be saved in the database and associated with the document they refer to.

On your author pages, you can find all your pending preprints divided according to their status:

• Under review: your submissions that are being considered for publication.
  Any revised versions that you have submitted following the editor's request can also be found here.
• To be revised (revision): preprints that you have been asked to revise and resubmit from your Author pages.
• To be revised (minor revision): preprints for which you have been asked to make some small modifications and resubmit from your Author pages.
• To proofread: accepted preprints that have been typeset in the JSTAT style and must be proofread by you before publication.
• Appeals against rejection: rejected preprints that you have asked to be reconsidered for publication.

Furthermore, in the top part of the page there are two navigation bars. The bottom one leads to all archived contributions, which are divided into

• Accepted: accepted preprints that are being typeset and proofread
• Rejected: preprints that have not been accepted for publication
• Withdrawn: preprints that have been withdrawn from the Journal
• Not suitable: preprints considered not suitable for this journal
• Published: articles published.

Authors take full responsibility for the content they submit for publication which must abide to the journal ethical standards. In particular authors have a responsibility to fully acknowledge the work of others, disclosing their sources clearly and thoroughly in the manuscript. Authors should also be aware of the possible shortcomings of AI generated material in this respect, and are thus required to declare and properly reference in detail the use of AI assisted technology in the preparation of the manuscript, either in the methods or acknowledgments section.

Title, Authors (first and family names), affiliations and e-mail addresses must be clearly indicated, we recommend the use of the ASCII character set in order to improve the compatibility with other systems.
If you have posted your preprint on the Archives, please enter its ID number in the submission form (in the field "arXiv number"). This will ensure your article, if published, is accessible to all interested readers.
The abstract should briefly summarize the content of the contribution and must fit in the first page.
Please avoid formulae and references in the title and abstract.
At the time of submission you must characterise your work with a number of keywords selected from the JSTAT keyword list. Please indicate these keywords after the abstract.

Please divide the text into sections. Write your work in standard, comprehensible English. Conciseness is strongly encouraged, but clarity and consistency are more important. Short and simple words and sentences are helpful for readers. Please keep jargon and acronyms to a minimum. The Editors will consider whether the content is of sufficient scientific interest compared to the overall length and may recommend ways of shortening the text.

Tables and figures can be used to improve the information in the text. Tables and figures should be referred to in the text and always have a caption describing their content.

If you include pictures or other material that has already been published elsewhere, please obtain permission from the copyright owner(s) before incorporating it in your article.

Particularly large tables and figures or multimedia materials can be submitted as attachments to the contribution, by clicking the "upload attachment" button after the submission of the main files for the paper has been successfully completed. They will be made available to reviewers but, in case of acceptance, will not be typeset or transformed in any way. Authors are therefore kindly requested to use standard formats to prepare them, so that editors, referees and readers will be able to view them. SISSA Medialab and IOP bear no responsibility for uncommon formats, viruses and other problems that may arise.

Particularly large tables and figures or other electronic supplementary material (animations, Mathematica files, etc.) can be submitted as attachments to a preprint. It is possible to submit more than one attachment recursively, clicking on the "upload attachment" button after the successful submission of your preprint. For each work you wish to attach, please fill in the form and provide a title, a caption describing the content of the file and choose the category of file that you are attaching (Figure, Table, Video or, generically, Attachment).

To accommodate user downloads, please keep in mind that the file-size affects the download time.

Any supplementary material attached will be available to reviewers and, in case of acceptance, will not be typeset or transformed in any way and will be published as such. To ensure that editors, referees and readers may be able to view the files attached, authors are kindly requested to prepare them using standard formats.

If you wish to include material that has already been published elsewhere, please obtain permission from the copyright owner(s) before incorporating it in your article.

JSTAT uses the sequential numerical system for references in the text. The sequential numbers occur within square brackets, and the reference list at the end of the preprint lists the references in numerical order, not alphabetically. Please write the reference as in the following example:

JSTAT strongly encourages citations to data files and similar supplementary material available in external repositories. Citations should follow the repository style (i.e, the “cite as” notice) and should include persistent identifiers such as DOIs wherever possible.
Correct citations allow for proper tracking, attribution and recognition apart from increasing discovery & further citations.

Data/Software/Code Availability Statements should be included at the end of articles submitted to JSTAT to improve their discoverability.

Manuscripts can be prepared in LaTeX or MS-Word and will be automatically transformed by the system in PDF files, though a successful conversion cannot be guaranteed in the case of MS-Word files.

Your contribution can be one of the following:

1. a single .tex file
   If the document consists of a stand-alone (La)TeX file this alone can be submitted as it is, without compressing it.
2. a file archive (.zip or .tar.gz)
   If your preprint includes more than one file (.tex,.eps, .pdf, .jpg, .bbl, .sty, etc.) the files will have to be archived (see "Archive preparation").
   Please make sure that the master file (*.tex) is saved in the root (main) directory of the archive, otherwise the file will not be processed by the system.
   If two or more files have the same .tex extension (i.e. "abc.tex" and "def.tex"), in making the submission you must specify the master file name in the appropriate field, otherwise the submission will fail.
   The archive should contain only the files necessary for the compilation and the production of the pdf (no cover letters, reports, etc.).
3. a file or archive plus attachments (additional figures, large tables, videos etc.).
   In this case proceed as indicated in point 1 or 2 to upload the main file and, when you see the upload confirmation screen ("submission report"), please click on the button "upload attachment" (at the bottom of the page), and you will be able to recursively upload additional material. These will be viewed as separate file attachments throughout the review procedure and after publication.

Always consider that the submission can be completed only if your file compiles successfully on the JSTAT server. Therefore, please check the pdf generated by the system.

Manuscripts should be preferably prepared in LaTeX using the IoP instructions. If you are using other LaTeX formats, you should try to use standard packages. Some frequently used macro packages, (i.e.: aastex, elsart, feynman, harvmac, lanlmac, j-phys, phyzzx and revtex), even if old and/or deprecated, are installed at the JSTAT site in addition to the standard TeX inputs. If you are using an unrecognised package, please include it in making the submission.
If you have used BibTeX, you must include the .bbl file. The .bib file may also help.

We accept figures in the follwing formats: .ps, .eps and .jpg, .png, .pdf. During the compilation process we try to produce .pdf files. If your images are only in the .ps or .eps format then we first we produce a .dvi file and next we gnenerate a .pdf file from it. Otherwise the compilation produces a .pdf file directly.

Please include the .gls file if you use the glossaries package.

Your contribution can be one of the following:

1. a single .docx file
   Please note that if the .docx file contains figures it should be submitted as a file archive (see point 2).
2. a file archive (.zip)
   If your preprint includes more than one file (.docx, .jpg, .png, etc.) the files have to be uploaded as an archive (see "Archive preparation").
   Please make sure that the master file (.docx) is saved in the root (main) directory of the archive, otherwise the file will not be processed by the system.The other files may be included in subdirectories.
   If two or more files have the same .docx extension (i.e. "File1.docx" and "File2.docx"), in making the submission you must specify the master file name in the appropriate field, otherwise the submission will fail.
   Figures must be contained in the .docx file, but please make sure they are also included as separate files (GIF, JPEG) in the compressed archive.
3. a file or archive plus attachments (additional figures, large tables, videos etc.).
   In this case proceed as indicated in point 1 or 2 to upload the main file and, when you see the upload confirmation screen (submission report), please click on the button "upload attachment" (at the bottom of the page), and you will be able to recursively upload additional material. These will be viewed as separate file attachments throughout the review procedure and after publication.

Always consider that the submission can be completed only if your file compiles successfully on the JSTAT server. Therefore, please check the pdf generated by the system.

For documents prepared in Microsoft Word for Windows or Macintosh, please use only True Type fonts (also for Greek letters and mathematical symbols). Equations must be prepared using Equation Editor, version 1.0, 2.0, 3.0 or MathType.
For guidelines on how to prepare a MS-Word manuscript, please read the IOP instructions.

Preprints can be submitted only via the Internet by authors previously registered to JSTAT. The person making the submission (corresponding author) must be one of the authors. To register to JSTAT please complete the appropriate form available on the home page of the Journal. Registration is free (see also General). Please note that submitting a preprint implies the acceptance of the copyright agreement.

The procedure for submitting standard research papers and papers for a special issue is the same. After logging in to the home page, you are asked to choose the appropriate option:

• submit a paper
• submit an article for a Special Issue

In the case of an article submitted for a Special Issue, you will then be asked to select the name of the Special Issue you are submitting to before you proceed with the upload process.

There are two ways to submit a contribution

If you have already posted your article on the arXiv, then you can submit it to JSTAT just by selecting the keywords and sending the arXiv number. This facility only works for TeX/LaTeX files. Here are the detailed steps to submit your contribution.

This is an essential stage in the submission procedure because keywords are used by the software to select the appropriate Editor in charge of the editorial procedure. Please choose from 1 to 4 keywords which most accurately describe the subject of your work.

The keywords are organised into the sections listed below. At the bottom of the keyword page you can indicate in which section(s) you would like your article to be published. You preference will be taken into account, although the actual section(s) of publication will be decided at a later stage and will also depend on the review process.

JSTAT strongly encourages posting data files and similar supplementary material to publicly-accessible, discipline-specific, community-recognised repositories that comply with the FAIR principles as much as possible.
In cases where a suitable discipline-specific resource does not exist, such files may be submitted to a generalist repository (for example, Zenodo), including any such repositories provided by universities, funders or institutions for their affiliated researchers.
Authors may also wish to explore repository registries such as FAIRsharing.org and re3data.org

Supplementary material should conform to the FAIR principles as much as possible.

Revised versions can be submitted only if requested by the editor, contributions must therefore be originally submitted in their final form.

The revisions requested by the Editor are listed in your author's page in "State of preprints" - "To be revised (revision)" and "To be revised (minor revision)".

Authors that have been asked to revise their preprints must attend to the requested modifications and provide a new version of their preprints within 1 month at most. If the revised version is not submitted by the deadline the original submission will be withdrawn and any revised version will have to be considered as a new submission.

The revised preprints must be uploaded from the preprint page by clicking "submit revision" or "submit minor revision". You can resubmit via the arXiv or by web upload.

The cover letter with your reply to the referee report is mandatory and should clearly describe all the changes with respect to the previous version, explaining whether or not you have addressed the editor's requests. Please do not include your cover letter in your article's archive because it would be ignored by the system. You will be asked to enter the cover letter in a text area during the upload procedure. Please make sure you save it in a file on your computer before uploading it , as a network failure could cause the resubmission to fail and the cover letter might get lost. Should you forget to enter the cover letter when resubmitting your article, please connect to your JSTAT Author pages and send it with the "write to editor" e-mail tool.

In case your cover letter needs to be written using LateX, in order to submit it please do the following:

• connect to the preprint webpage and click on "submit revision"
• in the text area for the cover letter write "the cover letter has been attached to the preprint as a pdf file"
• complete the submission process
• upload the pdf file of your cover letter using the tool available for the supplementary material ("upload attachment" button at the bottom of the page confirming the successful upload of your revised preprint).

Contributions are selected, processed and reviewed as fairly as possible, with no discrimination by active scientists in the field. Authors of contributions that have been rejected can request the editor-in-charge to reconsider their decision on the grounds of serious and not polemic scientific reasons. If the editor should confirm their decision, authors can appeal and reply to the editor and referee(s). Also appeals must be scientifically justified and not polemic. Please send your rebuttal letters by connecting to the preprint page and using the "write to Editorial Office" button.
Second appeals are not considered unless there is a clear history of unfair treatment of the manuscript.

Although the identity of editors is anonymous, authors can communicate at all times with them through the appropriate "write to editor" button on their pages, or through the Editorial Office.

Errata and addenda can be submitted to JSTAT as stand-alone articles following the instructions below.
1) Click on "submit an erratum" or "submit an addendum" in JSTAT and see the list of published articles with you as corresponding author.
2) Find the article in question and click on "submit erratum" or "submit addendum".
3) Continue the submission process (see instructions).

The file submitted should be as follows.

File format - LaTeX or MS-Word
Title - "Erratum: Title of the original article" or "Addendum: Title of the original article". Different titles will be corrected during the typesetting stage.
Authors - They must be the same as the original article.
Abstract - it is the author's choice whether to include it or not in the file. In any case, abstracts will not be displayed on the published erratum/addendum's web page.
Keywords - They must be the same as the original article.
References - References to specific parts of the original article (equations, figures, tables, etc.) must be consistent with the numbering of its published version.

Please refer to the instructions about File and archive preparation if you need to submit an archive.

Errata and addenda are the only way to modify articles after publication. They are peer-reviewed, typeset and proofread before being published open access.

Please inform the Editorial Office if your erratum/addendum belongs to a Special Issue so that it can be included in the dedicated webpage.

A preprint can be withdrawn during the review process by clicking on the relevant button or, if not available, upon request to the editorial office.

A coauthor is a registered user selected by the corresponding author that has access to the author pages without being able to view the correspondence relating to the article or change the status of the article.

If the person you wish to select as a coauthor is not already registered, please ask them to register by completing the appropriate form available on the home page of the Journal. Remember that registration is free (see General for further details).

Coauthors are encouraged to update their JSTAT profile with their ORCID iD as a way to avoid cases of homonimy and incorrect attributions of published papers. In order to update their JSTAT with their ORCID iD, coauthors can use the link "modify my personal pages", that is available on the JSTAT home page after signing in.

Select Coauthors

After submission you can select your preprint's coauthors by clicking "Select Coauthor" at the bottom of the preprint web page.

Switch Corresponding Author

Once a coauthor has been selected it is also possible to change the corresponding author to one of the coauthors using the "Switch Corresponding Author" button.

With this operation, the existing corresponding author becomes a coauthor and the selected coauthor becomes the new corresponding author.

As soon as a new contribution is submitted to JSTAT, a preprint number is assigned and the preprint is listed as "Waiting for Editor's decision". The preprint number identifies your contribution throughout the editorial procedure, and is required for any correspondence with the JSTAT Editorial Office.

Figure 1. The preprint number

To access the preprint web page of a particular document for which you are the corresponding author or have been selected as coauthor, you should:

1. login to the JSTAT website at SISSA Medialab (jstat.sissa.it)
2. Click on "my Author pages"
3. The preprints still in progress are in the "pending papers" page divided according to their status.

The preprint web page for a particular preprint contains all the information about that preprint, except for confidential data (i.e., editor and referee names). From the preprint web page, you can perform the following actions:

• check the status of the preprint and the progress of the editorial procedure
• download the preprint in PDF format
• communicate with the Editor and with the Editorial Office
• read and download the report
• submit the revised version of the preprint, if requested by the Editor

After your contribution has been accepted and typeset you will be notified and you will be able to:

• view the typeset version of your document in PDF format
• proofread the document for mistakes or minor changes before publication. The only corrections acceptable at this stage are the following:
  • layout (i.e., wrong floating of figures or tables),
  • spelling mistakes in words or formulae,
  • wrong cross-references among formulae and text,
  • mistakes or updating in references
The corrections must be suggested using the web form accessible with the button "send proofs", explaining where they occur in the document (page number, paragraph and line, or equation number) and specifying both the old (wrong) version and the correction.
Please notice that if the corrections you request are not minor, the article will be shown to the editor-in-charge for approval. If (s)he reckons that they affect the content significantly, you may be requested to submit a revised version of the preprint for which a new review process will begin. This will be listed as "Pending revision after proofreading".

After your requested corrections have been implemented the publication process begins. Please note that if there is no feedback from the authors within 7 days from the first proofreading notification and if there are no major queries that need the authors' reply, the document is considered suitable for publication as it stands, and is sent for publication. It will be stored in the "published" pages of your JSTAT Author pages and will also be available on the IOP website.

JSTAT encourages authors to submit their accepted manuscript to arXiv at any time provided that the 'non-exclusive licence to distribute' is granted to arxiv.org. We recommend the inclusion of the DOI when citing the published manuscript. The publisher's current authors rights policy can be found here.

After acceptance of your paper, you will be contacted by the IoP Publishing Office to fill in and sign an Assignment of Copyright before publication.

JSTAT articles are published in one or more sections according to their subject matter and are assigned a publication ID and a DOI at the time of publication.

The submitting author will be asked to complete a copyright form online, on behalf of themselves and their co-authors, once their article has been accepted. There are two different options, depending on whether the article is to be published on a gold open access basis or on a subscription basis.

In the case of multi-author papers, only one author needs to complete the form, but they should have obtained the written consent of all the other authors beforehand. By signing the copyright form, it is assumed that all authors have received the final version of the contribution, have agreed to it being submitted to the journal and agree to the terms of the copyright form.

If your institution/employer owns the copyright of your manuscript, please ensure that they agree to the terms of the copyright form and that the full legal name of your institution/employer is inserted at the top of the form. If an authorised signatory of your institution/employer needs to sign the form, then they should do so at the bottom of the form along with the author who must also sign the form.

Articles to be published on a subscription basis

For articles to be published on a subscription basis, ownership of copyright is transferred to the Institute of Physics Publishing and SISSA Medialab, from the date on which the article is accepted for publication. The main features of the copyright transfer are that:

• authors transfer the worldwide copyright of their manuscript to the Institute of Physics Publishing and SISSA Medialab;


• authors are granted back certain specific rights under the copyright form;

Transfer of copyright allows IOP Publishing to participate in the work of the UK's Copyright Licensing Agency (CLA), which licenses copying in the UK. In addition, through bilateral arrangements, it participates in the work of other reproduction rights organizations around the world, principally the Copyright Clearance Center (CCC) in the USA. IOP Publishing supports these organizations as they represent a development in copyright protection that is extending to other countries, so that copying beyond those permitted under legislation should be paid for by the copier.

Articles to be published on a gold open access basis

Gold open access articles are subject to an Article Processing Charge (see below).

For gold open access articles, the author grants a non-exclusive licence to the Institute of Physics Publishing and SISSA Medialab, from the date on which the article is accepted for publication. This means that ownership of copyright is retained by the authors (or if your institution/employer owns the copyright then your institution/employer).

Gold open access articles are published under a Creative Commons attribution license (CC-BY 4.0) (more information on this licence can be found here). The Creative Commons attribution license allows anyone to re-use the content in any way they like, provided it is accurately attributed and the terms of the licence are adhered to.

Please email permissions@ioppublishing.org if you have any questions about the form.

Authors can access all versions of their JSTAT papers on their Author pages (in the link "published"). If your article was published years ago, the pdf file might be not available anymore. In this case, please write jstat-eo@jstat.sissa.it to request it. Regrettably, source files cannot be provided.

Articles can be published on open access terms. Gold open access articles are published under a Creative Commons attribution license (CC BY 4.0). More information on this licence can be found here. The Creative Commons attribution license allows anyone to re-use the content in any way they like, provided it is accurately attributed and the terms of the licence are adhered to. Copyright stays with the agreed copyright owner (usually the authors).

How can I have my article Open Access?
There are 2 options called “Open Access paid by Author” and “Open Access – Transformative Agreement”. Choose the appropriate option while submitting your article or change your article’s settings at any time before acceptance by using the button “Open Access Settings” on your preprint web page.

What is the option “Open Access paid by Author”?
Authors can opt to have their article published Open Access upon payment of an Article Processing Charge (APC) while submitting their article to the Journal or, during the review process, by using the “Open Access Settings” button on the preprint web page.

The APC for JSTAT is available here.
The fee covers all publication costs, from the management of peer review to the online hosting, dissemination and long-term archiving of the published paper. The corresponding author/paying third party will be sent an invoice after the article has been accepted for publication.

Does it make any difference in the review process or after publication?
Open access articles are treated in the same way as all other articles in the journal; they are peer-reviewed to the same high standard and are processed in the same way. Downloads of Open Access articles are included in Counter usage statistics and Open Access articles are indexed by abstracting and indexing services in the same way that regular articles are. The only difference is that they are published under a Creative Commons attribution license and are available to all on Open Access terms.

Who should I contact for more information about the copyright statement and Open Access publication fee?
For copyright and licensing issues you should contact permissions@ioppublishing.org

For the Open Access publication fee you should contact jstat@ioppublishing.org