Depositing Research Data in KURENAI

Kyoto University Research Information Repository(KURENAI) is an institutional repository where members of Kyoto University can deposit research and educational achievements generated at the university.
Revisions to the “Kyoto University Research Information Repository Operational Guidelines” in June 2019 now enable you to deposit “research data as evidence of research achievements”.

Advantages of Depositing Research Data in KURENAI

  • It allows you to assign a DOI* to your research data, which makes citing easier and improves the visibility of your research achievements.
    *DOI (Digital Object Identifier): An international identifier assigned to electronic academic data. Placing “” in front of the DOI name converts into the URL where the electronic data is stored. This enables a DOI to (1) serve as a globally unique identifier and (2) guarantee permanent access (prevent broken links).
  • It also makes your research data searchable on CiNii Research (National Institute of Informatics), a platform compiling research achievements in Japan, as well as on OpenAIRE, an internationally used platform, enabling both domestic and international access to your research achievements.

If you wish to deposit research data in KURENAI, please follow the instructions below to apply.


  • Only data that can be made available to anyone free of charge may be deposited in KURENAI. You may not set a password or otherwise limit access, nor may you charge a fee for use.
  • You may delay the publication of deposited data for a period of time set by you. In other words, you may specify the date of publication.
  • You may deposit “research data as evidence of research achievements”. For other types of research data, please contact us using the information provided below.
  • You may assign a DOI free of charge. If you wish to do so, please select one of the following two types.
    • JaLC DOI (a DOI by Japan Link Center (JaLC), the only DOI registration agency in Japan)
    • DataCite DOI (a DOI by DataCite, an international DOI registration agency specializing in research data)
      If you select a DataCite DOI, all metadata* registered with DataCite (though not the research data itself) will be handled as though released under CC0.
      *Metadata: Data that provides information about other data. In this case, it refers to the title, creator, etc. of research data deposited in KURENAI.

      Releasing metadata under CC0 increases the discoverability of research data as the metadata becomes accessible by a broader range of search services.
      For more information on CC0, please see “FAQ: What is CC0?”
  • It may not be possible to deposit data if it is too large. For data larger than 5GB, please contact us before submitting your application.
  • Posting bulletins, articles, or any content other than research data on KURENAI requires a different procedure. For details, please see “How to make your articles open access”.
  • KURENAI has no CoreTrustSeal certification yet. Please note that this repository may not serve your purpose if the organization from which you receive a research grant or to which you submit a thesis requires you to register your research data on a certified repository.
    For more information on CoreTrustSeal, please see "Support service for sharing data > How to select a data repository".

    Application Procedure

    Please download and use the [Research Data Application Documents Set] (zip format), which contains the documents and forms required in the application procedure.

    *Research Data Application Documents Set (breakdown): Flowchart for Pre-publication Check of Research Data (pdf) / Metadata Entry Form (xlsx) / Repository Registration Form (docx)

    (1) Conduct pre-publication check

    Use the “Flowchart for Pre-publication Check of Research Data” to ensure that publication will present no problems. Pay particularly close attention to the protection of personal information.

     (2) Prepare data files

    • We recommend using only half-width alphanumeric characters (and some half-width symbols such as hyphens and underscores) for file names, not full-width characters. If you use full-width characters, the file name may become garbled when the data is transferred.
    • There are no particular restrictions on file formats, but the following formats are generally recommended. 
      • Formats that are not dependent on specific commercial software
      • Formats with internationally standardized specifications
      • Formats that are widely used
    • ZIP files and other formats that compress multiple files together may also be deposited.
    • Multiple files may be deposited as one content (i.e., a unit by which metadata is assigned; each content is assigned its own URL). There is no limit to the number of files that can be deposited.
    • If you wish to add a DOI, please consider the granularity of your deposit (the scope of what is considered a single content), keeping in mind that one DOI can be assigned to each content of data.
    • We recommend that you prepare a “README file” that describes the contents and structure of the data file.

    (3) Prepare metadata

    • Fill in the metadata on the “Metadata Entry Form”.
    • Be sure to fill in “11. Rights” to clearly specify how others may use the data. To ensure proper wording, refer to Q5 of the “Guidelines for Specifying Conditions of Use in Research Data Publishing(Japanese text only)”, released by Research Data License Subcommittee under the Research Data Utilization Forum (RDUF).

    (4) Submit your application to the library

    Fill in the “Repository Registration Form,” and send it along with the “Metadata Entry Form” and your complete set of data files to contact details below. You may use appropriate storage media if transferring large data files.


    Q1. What are the differences between JaLC DOIs and DataCite DOIs?
    A1. JaLC DOIs and DataCite DOIs do not differ in terms of function. There are, however, differences in the external research data search services that are linked to each registration agency. DataCite DOIs are specifically for research data and are therefore recorded in the Data Citation Index, Mendeley Data, etc.

    Q2. Can I deposit research data before my article is published? As a condition for articles to be accepted, research data needs to be deposited and shared via a repository in advance.
    A2. Yes, you can. In such case, please inform us of the URL (DOI) of your article once it has been published. We will include the URL (DOI) in the information on the research data that you deposited in KURENAI and provide a link so that the article is accessible from the research data page.

    Q3. I was previously affiliated with Kyoto University. Can I deposit research data in KURENAI?
    A3. You can if the data is from when you were affiliated with Kyoto University. Please use the Repository Registration Form (docx) for those not affiliated with the university and follow the appropriate application procedure.

    Q4. What is CC0?
    A4. CC0 is a type of Creative Commons License, which means that no rights are reserved over the subject matter. Anyone can freely make use of data released under CC0, which promotes the development of research and services that make use of such data.
    CC0 ― “No Rights Reserved” Creative Commons
    CC0 FAQ
     Creative Commons

    Application and Inquiries

    Repository Section, Kyoto University Library
    rs660 [at]
    (Inner line)16-2659