Information for Data Centres

If you are already a data centre registered with the TIB, you will find practical information on DOI registration here.

Step by Step to the DOI

There are two ways to register objects and upload metadata:

  1. Data centres that only want to register a few DOIs per year can use the web-based user interface of Fabrica.
  2. For larger registration quantities, automatic DOI registration via DataCite MDS API is a good solution.

Short instruction

This short guide shows how to register DOIs in Fabrica's online form.

Step 1: Create a DOI name from the prefix and suffix

  • Example of a DOI name: 10.12345/abc123
  • The prefix is assigned to you by the TIB.
  • You can design the suffix as you like.

Step 2: Create metadata as an XML file and upload it to Fabrica

  • Metadata is a prerequisite for every DOI registration
  • The metadata is created according to the current DataCite metadata schema.
  • To be able to register DOIs, it is sufficient to fill in the mandatory fields

Any XML editor can be used to create the metadata, for example Notepad++ (free of charge).

The table below shows the three groups (required fields, recommended fields and optional fields) into which the metadata fields are divided.

Field Property
Mandatory Identifer, Creator, Title, Publisher, PublicationYear, ResourceType
Recommended Subject, Contributor, Date, RelatedIdentifier, Description, GeoLocation
Optional Language, AlternateIdentifier, Size, Format, Version, Rights, FundingReference


We recommend that you specify as much metadata as possible. The more information stored in the metadata, the better the objects can be found and used. The data of Fabrica is used by scientific search engines (e. g. BASE) or other services (e. g. ORCID).

Step 3: Specify the overview page, the so-called landing page, for the object.

  • The URL of the landing page must match the domain you specified when you created the TIB's Fabrica account.
  • If the location or address of the digital object changes, the URL in Fabrica is simply adapted.

Construction of the identifier

DOIs consist of a prefix and a suffix. The TIB assigns one or more prefixes to you, and then you design the respective DOI suffix.  

You do not need to express any specific or descriptive information in the suffix - this information is mapped to the metadata during registration. If you choose to insert bibliographic information into a DOI string, this has no meaning within the DOI system. Existing identifiers such as an ISBN, PII (Personal Identification Information) or an internal numbering scheme can also be used for the DOI suffix.

What should be considered when designing the suffix?

  • Make the suffix easy to read. Remember that DOIs appear online and in print, and users re-enter DOIs.
  • The optimum length of a DOI suffix is between 8 and 10 characters. This is long enough to ensure uniqueness and short enough to avoid typos
  • Be clear: A suffix must be unique within a given prefix.
  • Only use the permitted characters "a-z","A-Z","0-9" and "-. _; ()/".

Please note that a DOI should always be expressed as a URL. For this reason, it is recommended to keep the suffix short.

Some suffix examples are already available:

Data centre DOI example Annotation


Data centre name 
and serial number
TOPOI ExcellenzCluster 10.17171/1-3-632-2 Specification of a 
versioning by dashes
Alfred Wegener Institut 10.2312/POLARSTERN-
Name of the journal 
and issue number
10.3204/PUBDB-2017-01316 Internal database 
as well as year and 
serial number
European Society 
of Radiology
10.1594/ECR2017/C-1433 Abbreviation of the 
data center and year 
and internal identifier


The Landingpage

As soon as the digital objects are registered, the corresponding DOIs are called by users.

Ideally, the DOI dissolves on a landing page that contains relevant information about the object (e. g. creator, year of publication, legal framework, download link of the object). Landing pages are freely accessible to everyone and can be used even if the object is no longer available or access to it is restricted. The information provided here should be both human and machine readable.

Your landing page must contain the following information:

  • A complete quote
  • The DOI displayed as URL
  • Direct access to the full text

Example of a landing page of the Physikalisch-Technische Bundesanstalt:

Create XML for content registration

Each object registered with a DOI receives descriptive metadata. We offer you a simple form for registering your properties.

The form does not require any XML knowledge and is suitable for a small number of registrations. You can use this form to register journal, book, conference, report and dissertation content. In addition, existing XML files can be uploaded and edited.


DOI Service