Martyn joined Crossref in June 2020 as Product Manager. Prior to that he spent seven years at open access publisher MDPI in various roles, including roles in production, editorial, and author services. Before moving into publishing Martyn was a researcher, developing instrumentation in life sciences, material sciences, and analytical chemistry. He completed his PhD at the University of Warwick before postdoc positions at the University of Reading and the University of Freiburg. In 2024 Martyn took on the expanded role of Program Lead, responsible for all our activities that fall under the Research Nexus, such as metadata relationships, matching, and APIs. Outside of work you can find him spening time with his family, making music, or exploring the Black Forest by foot or by bike.
Our REST API makes all of the metadata we hold publicly available. It receives the majority of our API traffic, with around 1 billion hits per month. It’s one of the key ways that we fulfil our mission to make research objects easy to find, cite, link, assess, and reuse. From 1 December 2025, we will be revising the rate limits for the public and polite pools of the REST API to ensure that we can maintain a stable and reliable system, and that metadata is freely available to everyone.
At the end of last year, we were excited to announce our renewed commitment to community and the launch of three cross-functional programs to guide and accelerate our work. We introduced this new approach to work towards better cross-team alignment, shared responsibility, improved communication and learning, and make more progress on the things members need.
Every year we release metadata for the full corpus of records registered with us, which can be downloaded for free in a single compressed file. This is one way in which we fulfil our mission to make metadata freely and widely available. By including the metadata of over 165 million research outputs from over 22,000 members worldwide and making them available in a standard format, we streamline access to metadata about scholarly objects such as journal articles, books, conference papers, preprints, research grants, standards, datasets, reports, blogs, and more.
Retractions and corrections from Retraction Watch are now available in Crossref’s REST API. Back in September 2023, we announced the acquisition of the Retraction Watch database with an ongoing shared service. Since then, they have sent us regular updates, which are publicly available as a csv file. Our aim has always been to better integrate these retractions with our existing metadata, and today we’ve met that goal.
For the third year in a row, Crossref hosted a roundtable on research integrity prior to the Frankfurt book fair. This year the event looked at Crossmark, our tool to display retractions and other post-publication updates to readers.
Since the start of 2024, we have been carrying out a consultation on Crossmark, gathering feedback and input from a range of members. The roundtable discussion was a chance to check and refine some of the conclusions we’ve come to, and gather more suggestions on the way forward. As in previous years, we were able to include a range of organisations, which led to lively and interesting discussions. See below for the full participant list.
