About the PID Services registry.

This registry provides an overview of services related to Persistent Identifiers (PIDs).

To register please send an email to support@datacite.org with the required (below) metadata for your service.

Metadata

All services are registered as a DOI provided by DataCite and uses the associated DataCite metadata schema to describe the services. More information can be found from the DataCite Metadata Schema site.

Below is a table that describes the important mapping of metadata used in the PID Services Registry.

Field	DataCite MetaData	Guidance
PID Type	Subject	subjectScheme="PidEntity" with values of: Publication, Citation, Conference, Researcher, Organization, Dataset, DataRepository, Grants, Project, Experiment, Investigation, Analysis, Software, Computer Simulation, Software License, Equipment, Sample
Service Provider Name	Creator/CreatorName	creatorName with nameType=Organizational
Service Provider URL	Creator/NameIdentifier	A ROR Identifier where available.
Service Name	Title	First title will be used
Service Tagline	Title	type="Subtitle"
Service Description	Description	First description will be used
Service Publication Year	Description	Date of service publication
Service Language	Language	ISO 639-1 language codes
Geographic Availability	GeolocationPlace	Worldwide, region e.g. Europe or ISO Country Codes
Service Category	Subject	subjectScheme="ServiceCategory" with values of: Sharing & Discovery, Processing & Analysis, Compute, Storage, Data Management, Networking, Training and Support, Security and Operations
Service Tags	Subject	subjectScheme="ServiceTag"
Scientific Fields	Subject	subjectScheme="Fields of Science and Technology (FOS)", values based on OECD
TRL	Subject	subjectScheme="TRL" 8 or 9 services as defined by EU Technology Readiness

API

This registry interface is built on top of the GraphQL API that was built as part of the FREYA Project. This means you can query using any GraphQL client to obtain details of the registered services. Here is an example query:

query {
    services(first: 25, repositoryId: "datacite.services") {
        nodes {
            id
            doi
            titles {
                title
            }
        }
    }
}

All services DOIs are registered under the repository "datacite.services" so that only services associated with the registry are returned.

In addition to the GraphQL API, because these are registered as DataCite DOIs you may additionally query them using any other existing interface offered, other APIs are documented on the DataCite support site.

Contact

The PID Services Registry is maintained by DataCite and was developed within the FREYA project. For more information about the registry contact support@datacite.org