What do you want to know about research software? - Find out at the Software Graph Hackathon
Oct 14, 2019   Frances Madden (British Library)

It is reasonably well known at this point that research software has value and should be treated as a citable output in research but how much software is actually cited and how does it relate to other types of research output? These are just a couple of questions which the Persistent Identifier (PID) Graph can help to answer. The PID Graph is a concept which provides an opportunity to discover the background and relati...

Meet the FREYA partners: ARDC
Oct 02, 2019   Natasha Simons and Adrian Burton (ARDC)

Many different organisations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about ARDC, the Australian Research Data Commons.

What is the mission of your organisation?

The Australian Research Data Commons (ARDC) is a transformational initiative that enables the Australian research community and industry access to nationally significant, leading edge data intensive technical infrastructure, platforms, skills and collections of high-quality data. In partne...

FREYA's experiences at the EOSC workshop in Brussels
Sep 16, 2019   Vasily Bunakov (STFC)

FREYA contributed to the EOSC meeting and workshop in Brussels on 9-10 September organized by two Eurocommission departments: The Directorate‑General for Communications Networks, Content and Technology (DG CONNECT) and Directorate-General for Research and Innovation (DG RTD). The event was aimed at developing closer links among the projects that contribute to the development of the European Open Science Cloud (EOSC). EOSC Secretariat and heads of the EOSC Working Gro...

Meet the FREYA partners: PANGAEA
Aug 14, 2019   Tina Dohna and Ketil Koop-Jakobsen (PANGAEA, MARUM University of Bremen)

 Many different organisations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about PANGAEA, an Open Access library aimed at archiving, publishing and distributing geo-referenced data from earth system research.

What is the mission of your organisation?

The World Data Center PANGAEA is operated as an Open Access li...

The PID Graph within the RDA: FREYA/RDA UK Node Workshop
Aug 01, 2019   Frances Madden (BL)

On Tuesday 16 July, FREYA and the RDA UK Node teamed up for a workshop on persistent identifiers. With almost 70 delegates, hosted at the Wellcome Trust, the event provided a great opportunity for a UK audience to engage with FREYA's work and the role of the project within the RDA and beyond. This event was the second workshop arranged by the UK node of the RDA which is co-ordinated by STFC and JISC. We heard about the various RDA groups which are relevant to persistent identifiers.

The day began with an overview of the PID landscape. First up was Chris Brown from JISC who spoke abo...

Meet the FREYA partners: DataCite
Jul 23, 2019   Helena Cousijn & Robin Dasler (DataCite)

Many different organizations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about DataCite, a leading global non-profit organisation that provides persistent identifiers (DOIs) for research data. 

What is the mission of your organisation?

DataCite is a leading global non-profit organisation that provides persistent identifiers (DOIs) for research data and other research outputs. Through our portfolio o...

Meet the FREYA partners: EMBL-EBI
Jun 27, 2019   Christine Ferguson, Information Scientist (EMBL-EBI) and FREYA Project Lead for Literature Services

Many different organizations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about the European Bioinformatics Institute (EMBL-EBI), ‘Europe’s home for big data in biology’.


What is the mission of your organisation?

‘Europe’s home for big data in biology’, the European Bioinformatics Institute (EMBL-EBI) can be found on the super-slick and shiny Wellcome Genome Campus in Hinxton, Camb...

Researchers and Persistent Identifiers: Preserving Data through Accessibility
Jun 11, 2019   Tabish Virani (University College London - MA in Digital Humanities programme)

For three weeks in May 2019, Tabish Virani, a student at University College London’s MA in Digital Humanities programme, had a work placement assisting the FREYA team in compiling training materials for researchers. Here he reflects on what he has learned.

Over the past three weeks, I have had the privilege of taking part in a work placement at the British Library where I assisted with the FREYA project. As a student in UCL’s MA in Digital Humanities program, I have quite the interest in data protection as well as data accessibility. During my time at the British Library I ...

Meet the FREYA partners: CERN
Jun 03, 2019   Sünje Dallmeier-Tiessen (CERN), Artemis Lavasa (CERN), Stephanie van de Sandt‎ (CERN)

Many different organizations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about CERN, the European Organization for Nuclear Research, located on the border of Switzerland and France.

What is the mission of your organisation?

At CERN, our work helps to uncover what the universe is made of and how it works. We do this by providing a unique range of particle accelerator facilities to researc...

Using Jupyter Notebooks with GraphQL and the PID Graph
May 27, 2019   Martin Fenner (repost from DataCite Blog)

Two weeks ago DataCite announced the pre-release version of a GraphQL API Fenner (2019). GraphQL simplifies complex queries that for example want to retrieve information about the authors, funding and data citations for a dataset with a DataCite DOI. These connections together form the PID Graph Fenner & Aryani (2019)], and...

Meet the FREYA partners: DANS
May 06, 2019   Ricarda Braukmann (DANS)

DANS (Data Archiving and Networked Services)

What is the mission of your organisation?

DANS is an institute of the Royal Netherlands Academy of Arts and Sciences (KNAW) and the Netherlands Organisation for Scientific Research (NWO). DANS promotes sustained access to digital research resources and encourages scientists to make their data Findable, Accessible, Interoperable and Reusable (FAIR). DANS has three core services: EASY, an online archiving system for long term storage of scientific data. D...

Towards Persistent Identification of Conferences
Apr 18, 2019   Aliaksandr Birukou (Springer Nature), Stephanie van de Sandt‎ (CERN), Artemis Lavasa (CERN), Sünje Dallmeier-Tiessen (CERN)

Belongs to blog post Towards Persistent Identification of Conferences.

Conference talks are a key element in scholarly communication. It is the primary mechanism for sharing research results and getting feedback. However, conferences in most disciplines never reached the same level of maturity as traditional journal publications in terms...

Exposing DOI metadata provenance
Apr 11, 2019   Repost from DataCite Blog

This is blog post was originally published on the DataCite blog written by Martin Fenner on April 4 2019 and is available here:


DOI metadata provenance is describing the history of a particular DOI metadata record, i.e. what changes were made when and by whom. This information is now stored and provided via an API for all DOI registrations since March 10, 2019.

The following provenance information is now available via a new /activities REST API ...

Introducing the PID Graph
Mar 28, 2019   Martin Fenner (DataCite) & Amir Aryani (Swinburne University)


Everything is connected


Persistent identifiers (PIDs) are not only important to uniquely identify a publication, dataset, or person, but the metadata for these persistent identifiers can provide ...

Meet the FREYA partners: The British Library
Mar 20, 2019   Frances Madden (BL)

Many different organizations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about The British Library.

What is the mission of your organisation?
The British Library is the national library of the United Kingdom and is the largest
national library in the world in term of catalogue items. It is a legal deposit library so
receives a copy of every publication in the UK and Ireland, around 8000 per day. It is
also a major research library and holds a vast collection of ma...

Link Checking - Enabling PID Resolution Services
Mar 19, 2019   Robin Dasler (DataCite)

As part of our ramp up to developing the PID Graph, FREYA partners have worked on providing reliable and scalable PID resolution services with support for particular functionality important to our project partners in various disciplines. One example of such functionality is support for link checking.

What do we mean by link checking?

When we talk about link checking, we're really talking about automatic verification of the URL that is contained in a PID's meta...

Work through your PID problems on the PID Forum
Mar 13, 2019   Repost from Crossref Blog

This is blog post was originally published on the Crossref blog written by Helena Cousijn, Rachael Lammey and Alice Meadows on February 21 2019.

As self-confessed PID nerds, we’re big fans of a persistent identifier. However, we’re also conscious that the uptake and use of PIDs isn’t a done deal, and there are things that challenge how broadly these are adopted by the community.

At PIDapalooza (an annual festival of PIDs) in ...

Meet the FREYA partners: STFC
Mar 04, 2019   Simon Lambert (STFC)

Many different organizations are involved in FREYA and in this blog post series we take a closer look at the partners and their work. This time you can read about STFC, The Science and Technology Facilities Council (part of UK Research and Innovation).

What is the mission of your organisation?

STFC is a world-leading multi-disciplinary science organisation in the UK. As well as funding research in the fields of astronomy, particle physics and nuclear physics, STFC operates large-scale facilities for use by researchers, includ...

Announcing the first ROR prototype and next steps
Feb 14, 2019   Repost from DataCite Blog

Repost from the DataCite Blog written by Maria Gould on February 11, 2019 available at


What has hundreds of heads, 91,000 affiliations, and roars like a lion? If you guessed the Research Organization Registry community, you’d be absolutely right!

Last month was a big and busy one for the ROR project team: we released a working API and search interface for the registry, we held our first ROR community meeting, and we showcased the initial prototypes at PIDapalooza in Dublin...

PIDapalooza 2019: Building a global PID community
Feb 04, 2019   Ricarda Braukmann (DANS)

Picture of the PID Forum Button (I love PIDs) for the PIDapalooza19 blog postThis year’s destination of PIDapalooza, the relatively new but already famous persistent identifier festival, was Dublin and many partners from FREYA travelled to Ireland to present their work. For us, this year’s edition of PIDapalooza largely revolved around the launch of pidfo...

Free for Everyone, Always: The ORCID Public API and Data File
Jan 29, 2019   Repost from ORCID Blog

This is blog post was originally published on the ORCID Blog by Alice Meadows on Fri, 2019-01-11 04:38 and is available at:

As part of our commitment to openness, we have a public API that is available for community use, and we also release an annual snapshot of publicly available data in the ORCID Registry. We’re always excited to learn about interesting ways these too...

Data Citation: Connecting articles and datasets.
Jan 16, 2019   Helena Cousijn (DataCite) and Rachael Lammey (Crossref)

The FREYA project is all about connecting different identifiers to improve discovery, navigation, retrieval, and access of research resources. One important connection people think and talk about a lot is the connection between articles and datasets. On the side of articles, this connection is usually established through data citation: authors citing datasets that underlie the research in their article. On the side of data repositories, the connection is made when researchers add informati...

FREYA participation in ICT 2018 exhibition
Dec 10, 2018   Ketil Koop-Jakobsen (PANGAEA)

From December 4-6th 2018, FREYA was represented at the ICT 2018 exhibition in Vienna in the European Commission Village. FREYA participated in a joint booth with other EC-funded projects working on advancing Open Science; the EOSC-hub, OpenAIRE and RDA Europe. This gave us the opportunity to present the vision of FREYA in a larger perspective, and how our work fulfills an important niche in Open Science. Many people stopped by the booth for a chat about recent developments and perspectives on Open Science in Europe, and many questions revolved around how to move Open Science forward....

Digital Objects, Identifiers and the recently published Digital Object Interface Protocol (DOIP)
Nov 20, 2018   René van Horik (DANS)

Dr. Robert Kahn, the inventor of the TCP/IP protocol and one of the internet pioneers, gave a keynote at a workshop on Digital Objects organized by the “Group of European Data Experts in RDA[1]” late September.

His presentation concerned the Digital Object Architecture (DOA) in which identifiers undeniably play an important role. As the TCP/IP protocol describes the exchange of meaningless messages between devices with an IP address the need to exchange meaningful Digital Objects[2] became apparent early on and for which a ...

The Consortium of European Social Science Data Archives goes PID
Nov 08, 2018   Brigitte Hausstein (GESIS), Kerrin Borschewski (GESIS), René van Horik (DANS) & Birger Jerlehag (SND)

Compared to other disciplines, data archives have a long tradition in the social sciences. Their cooperation goes back to the 1970ties and they have good prerequisites and vast experiences to support the publication of the research data. In 2017 the Consortium of European Social Science Data Archives (CESSDA) got the status of an European Research Infrastructure Consortium (ERIC). It has sixteen members and each of them assigns a national Service Provider (SP), e.g. the GESIS Data Archive (Germany), Data Archiving and ...

PIDapalooza competition winner!
Nov 06, 2018   Barbara Lemon (British Library)

Nicole Kearney of Melbourne, Australia, will be heading to Dublin in January 2019 to join other PID enthusiasts and FREYA project members for three days of talking, sharing and troubleshooting PIDs.

Nicole is manager of the Australian branch of the Biodiversity Heritage Library, and spends a significant proportion of her time running training for libraries and publishers across Australia and New Zealand with a focus on digitisation and Open Access. Her competition entry raised the issue of registering DOIs for historic literature an...

FREYA @ FORCE2018: making PIDs work for you
Oct 29, 2018   Helena Cousijn (DataCite)

FORCE11 is a community of scholars, librarians, archivists, publishers and research funders that helps facilitate the change toward improved knowledge creation and sharing. Their annual meetings (this year: FORCE2018) aim to bring different stakeholders to the table for an open discussion about changing the ways scholarly and scientific information is communicated, shared and used. ...

Join FREYA partners at Digital Infrastructures for Research 2018
Oct 04, 2018   Christine Ferguson (EMBL-EBI)

This month the annual DI4R meeting takes place in Lisbon on the theme ‘Challenges for Research Communities around Open Science’. The conference will bring together stakeholders across the scholarly research community in Europe to talk about Open science.


FREYA colleagues, Christine Ferguson, at the EMBL-EBI, in Hinxton (UK), Eliane Fankhauser, at DANS (The Netherlands), Simon Lambert and Brian Matthews both at th...

FREYA in practice: Linking research output in the Dutch national science portal
Aug 30, 2018   Ricarda Braukmann & Chris Baars (DANS-KNAW)

One of the FREYA partners is DANS, the Netherlands institute for permanent access to digital research resources. DANS provides several services for the research community, including the national portal for scientific information, NARCIS. This portal provides information on Dutch (open access) publications, datasets, researchers, scientific institutes and projects.

Linking datasets and publications

Within FREYA, DANS is working on improving the connections between the di...

Engaging with FREYA: five ways to stay up to date about the project’s developments
Jul 17, 2018   Eliane Fankhauser & Ricarda Braukmann (DANS-KNAW)

The FREYA project runs now for a bit over half a year and our team is working hard on extending and improving the infrastructure for persistent identifiers (PIDs). To keep the community informed about FREYA’s work and progress, we use several social media channels for dissemination.

These are five ways to follow us and stay up to date:


[1] Website: Our most important communication medium is our project we...

Introduction to the FREYA Ambassadors’ Programme
Jul 09, 2018   Sarah Steward (British Library)

May 3rd, 2018 saw the launch of the FREYA Ambassadors’ programme, via an introductory webinar hosted by the British Library. The FREYA Ambassadors programme will continue and expand on the Ambassador programme introduced by the earlier THOR project. Engaging with the community is a core principle of the FREYA Project and the Ambassadors’ programme will ensure a close dialogue with that community.

Simon Lambert (STFC, 0000-0001-9570-8121) opened the webinar with an introduction to the FREYA project from a global perspective, introdu...

FREYA at the ORCID Nordics workshop
Jun 25, 2018   Simon Lambert

Simon Lambert from STFC gave the keynote talk at the ORCID Nordics workshop held in Helsinki on 29 May 2018, introducing the FREYA project to an audience of ORCID users. He explained the context of FREYA in the global and European e-infrastructure, and introduced the PID Graph, which is fundamental to FREYA. The idea of PIDs forming a connected graph is not new itself, but FREYA aims to provide services at different levels for the construction and navigation of the graph as a fundamental part of the e-infrastructure.

Other talks emphasized the growing importance of identifying fundi...

Linking as the common factor: FREYA at the 11th RDA Plenary
Mar 29, 2018   Ricarda Braukmann (DANS-KNAW)

The new secretary general of the RDA, Hilary Hanahoe, chose to open the 11th plenary  in Berlin with a poetic comparison. Like an orchestra, she said, the members are a collective group of passionates who play for their audiences everywhere in the world. After some jokes about the still not finished new airport Berlin-Tegel by the local and the national State Secretary and an engaging panel discussion during which Klaus Tochtermann (ZWB) stated that partners are working hard not to let the European Open Science Cloud (EOSC) become the European Open Science Chao...

PIDapalooza 2018: A PID for everything and everything in its PID
Feb 28, 2018   the FREYA team
PIDapalooza 2018: A PID for everything and everything in its PID

The second PIDapalooza Festival, co-organised by California Digital Library, Crossref, DataCite, and ORCID, took place from 23-24 January 2018 in Girona, Spain, with 180+ participants from 23 countries and six continents. FREYA team members were there, and lots of the discussions were relevant for the project. Here we report on just a few points of interest - most presentations are available via the Figshare repository.


As a festival for pe...

FREYA at the EUDAT Conference in Porto, January 2018
Feb 15, 2018   Simon Lambert (STFC)

The final conference of the EUDAT2020 project project took place in Porto from 22 to 25 January. The event, titled "Putting the EOSC vision into practice", showcased the results of the EUDAT2020 project and was a forum for presenting and discussing the latest trends in data infrastructure and data management solutions for research.  FREYA was represented in a talk by the project coordinator Simon Lambert as part of a session on ‘Computing e-infrastructure with extreme large datasets’. Of course FREYA is not specifically concerned with such very large datasets, but they have implicatio...