OpenAIRE Scholexplorer
Scholexplorer is a service aggregating all the Scholix compatible data sources, namely EuropePMC, Crossref Event Data, OpenCitations, DataCite Event Data, and institutional and thematic repositories. More specifically, it collects, resolves, and duplicate scholarly links to offer an open API to resolve any PID and return the list of related linked entities.

Crossref Open Citations Index (COCI)
COCI, the OpenCitations Index of Crossref open DOI-to-DOI citations, is made available in machine-readable format. Read about how COCI is making citation data and related provenance information available in Scholix format in the OpenCitations blog. (21 January 2020).

Europe PMC
Europe PMC is a repository providing access to worldwide life sciences articles, books, patents and clinical guidelines. Europe PMC provides links to relevant records in databases such as Uniprot, European Nucleotide Archive (ENA), Protein Data Bank Europe (PDBE) and BioStudies. Read about how Europe PMC are using Scholix to integrate literature and data links and make these available to hubs like DataCite, CrossRef and OpenAIRE in the Europe PMC Tech Blog post: Integrating Literature and Data. (4 June 2018)

Dryad is a nonprofit repository for data underlying the international scientific and medical literature. Read about how Dryad Digital Repository are contributing to Scholix in the Dryad blog post: Improvements in data-article linking  (18 December 2017) 

Scopus is an abstract and citation database of peer-reviewed literature including scientific journals, books and conference proceedings available by subscription from Elsevier. In 2017, Scopus became an early adopter of the Scholix initiative to enable linking of scholarly publications with datasets. Through collaboration with Scholexplorer, Scopus is able to link articles in their database with datasets (where available) in external data repositories. This is achieved by matching identifiers (such as DOIs).  See: How does it work?
This collaboration with Scholix allows Scopus to measure the level of interest its users have in research data and understand where they find the most value. “The process was easy thanks to the collaboration with the DLI group. We just had to set up harvesting of the article-dataset links using the DLI API. No written agreement was required to interact with the DLI as it is an open service, but it’s been very productive to work together to achieve this goal” - Dr. Eleonora Presani, Product Manager - Scopus

The collaboration with Scholix is only the first step for Scopus in the area of research data. In October Scopus will release a link on the search results page to find related results on DataSearch, which is an Elsevier search engine specialized in searching research data. This will complement the current collaboration with Scholix which is limited to viewing data related to specific articles. Future collaboration with PlumX Analytics will also help define metrics around research data and their correlation with articles.  Scopus is looking forward to hearing from users to better understand the ways they would want to use research data and what they would expect from a service like Scopus. This will help develop a strong roadmap of services that will allow researchers to add datasets to their CVs; universities to showcase their data output as well as their article output; and funding bodies to evaluate proposals and measure success based also on research data, and not just publications. 

Join us
The more publishers collaborate with Scholix, the easier it will be to connect publications with data and provide value around research data. If you are a publisher and would like to use the Scholix initiative to link scholarly articles in your database with datasets in data repositories, please join the Scholix Working Group (to make sure your needs/aspirations are noted) and then use the DLI API.

Scholix hub implementors

The following hubs implement Scholix-compliant interfaces:

 Implementor  API Details
 Scholexplorer (OpenAIRE)
 DataCite Event Data
 CrossRef Event Data