What is MIME type "application/x-research-info-systems"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/x-research-info-systems is a MIME type for files that store citation data in a plain text format. It follows the RIS standard, which organizes bibliographic information into easily exchanged text blocks.

This format is used by citation managers, academic databases, and research software. It simplifies the transfer of citation details between different platforms. The structure includes simple tags for authors, titles, dates, and other publication data.

The related file is RIS. This file is plain text and easy to view or edit with basic text editors.

More technical details and practical guides can be found on resources like CrossRef.

Associated file extensions

.ris

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-research-info-systems

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-research-info-systems">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');    
    
    http.createServer((req, res) => {    
      res.setHeader('Content-Type', 'application/x-research-info-systems');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.ris

FAQs

Which software applications open files with the application/x-research-info-systems MIME type?

This MIME type is primarily associated with citation management software. Popular applications include EndNote, Zotero, Mendeley, and RefWorks. Because the underlying format is plain text, you can also view the raw data using basic text editors like Notepad or TextEdit.

How do I configure Apache to serve .ris files correctly?

To ensure browsers recognize the file correctly, add the MIME type directive to your .htaccess file or main configuration. Use the following line: AddType application/x-research-info-systems .ris. This ensures that when a user clicks a citation link, their citation manager launches automatically.

Why does my browser download the RIS file instead of displaying it?

Browsers are designed to download files with the application/ prefix or hand them off to external applications, rather than rendering them like HTML or images. If you do not have a citation manager installed, the browser will simply save the file to your downloads folder. You can force it to open in a text editor by changing your OS file associations for .ris files.

Can I edit application/x-research-info-systems files manually?

Yes, because these files use a plain text structure, they are safe to edit manually. The file consists of two-letter tags (like TY for Type and TI for Title) followed by the data. However, be careful not to break the strict formatting required by the RIS standard, or citation software may fail to import the record.

What is the correct Nginx configuration for this MIME type?

For Nginx servers, you need to update the mime.types file usually located in /etc/nginx/. Add the following line inside the types { } block: application/x-research-info-systems ris;. After saving the file, reload Nginx to apply the changes.

What does the 'x-' prefix mean in this MIME type?

The x- prefix indicates that application/x-research-info-systems is a non-standard or experimental type that was not originally registered with the IANA. Despite this, it has become the de facto standard for exchanging bibliographic data across the web and is universally recognized by research software.

Are there any security risks associated with this file type?

RIS files are generally low-risk because they contain plain text rather than executable code. However, as with any data import, vulnerabilities in the parsing software (the citation manager) could theoretically be exploited by a malformed file. Always ensure your research software is updated to the latest version.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.