What is DataCite
DataCite is a worldwide service that main aim is to give the possibility to register DOI identifiers. Currently, DataCite is one of ten official DOI Registration Agencies.
What is DOI
DOI is an accronym for Digital Object Identifier. It can be assigned to digital resources (materials, publications, software code, etc.) in order to unambiguously identify them regardless of their publishing form, and even to identify unpublished materials.
DOI consists of two elements: the prefix indicating an organization, and the second part identifying an object within the organization indicated by the prefix.
DOI is a type of persistent identifier, which means it’s not supposed to be deleted after registration. When any data regarding associated with DOI changes (eg. URL to publisher’s website), information about it must be updated in registry. There is no need to create new DOI for the resource.
A Registered Service Provider
Registered Service Provider is an organization that is integrated with DataCite API. It allows DataCite Members to register and update DOIs.
Data range supported by DOI Registration Agencies
DOI Registration Agencies support wide range of data, but each one also has specific focus. For example Crossref is mostly known for articles and books due to its focus on publishers - but it supports other data types. DataCite supports a wide variety of data - from datasets and publications to phd theses and unpublished materials. It is mostly recommended for repositories, while Crossref is recommended for publishers.
Data types available to be registered using Omega-PSIR system
Omega-PSIR supports registering and downloading data of the following types:
book (in DataCite: Book, ConferenceProceeding)
chapter (BookChapter, ConferencePaper)
article (JournalArticle, ConferencePaper)
research data (Dataset)
phd (Dissertation)
report (Report)
System Omega-PSIR is compatible with Metadata Schema 4 version (https://schema.datacite.org/).
Account types in DataCite
There are two DataCite environments - test and production. A member is given different login credentials to each of them. So it is very important to double check credentials when there are any issues.
More information: https://support.datacite.org/docs/what-is-the-difference-between-the-datacite-test-and-production-environments
Within test and production DataCite there are two different type of accounts - the organization account (with login like XXXX, all capital letters) and the reposiotry account (login like XXXX.XXXX).
An organization account is for contact information, creating and updating repositories. A repository account allows user to create DOIs and update metadata.
More information: https://support.datacite.org/docs/what-is-the-difference-between-a-memberconsortium-organization-account-and-a-repository-account-in-fabrica
DOI states in DataCite
DOIs created and updated in DataCite can have one of three states:
draft (hidden) - creates DOI. This status doesn’t require any metadata (user can create empty DOI) and system doesn’t validate any data sent with this state. Such DOI can be deleted
findable (published) - DOI is registered and findable in DataCite registry. Upon updating to findable state, metadata is validated
registered (hidden) - DOI is registered but not findable (hidden in DataCite registry). It's recommended to use registered state when metada associated with identifier has changed (eg. when publisher’s website URL changed) and an update is required
More information: https://support.datacite.org/docs/doi-states
Once deleted, identical DOI can’t be created again, even when it have never been used or had no metadata added.