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As a not-for-profit with over 21,000 members in 160 countries, we drive metadata exchange and support nearly 2 billion monthly API queries, facilitating global research communication, for the benefit of society."><meta name=author content="Rosa-Clark"><meta name=gitlastmod content="2025-02-06 10:25:04 -0500 -0500"><meta name=hugolastmod content="2025-02-06 10:25:04 -0500 -0500"><meta name=copyright content="Crossref - 2025"><meta name=twitter:label1 value="Reading time"><meta name=twitter:data1 value="1 minute read 🕑"><meta property="dc:language" content="en"><meta property="dc:format" content="text/html"><meta property="dc:rights" content="CC BY 4.0"><meta property="dc:source" content="Crossref"><meta property="dc:type" content="website"><meta property="dc:title" content="You are Crossref"><meta property="og:title" content="You are Crossref - Crossref"><meta property="og:site_name" content="www.crossref.org"><meta property="og:description" content="Crossref runs open infrastructure to link research objects, entities, and actions, creating a lasting and reusable scholarly record. 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principles and practices</a></li><li><a href=/documentation/register-maintain-records/>Register and maintain your records</a></li><li><a href=/documentation/schema-library/>Schema library</a></li><li><a href=/documentation/reports/>Reports</a></li><li><a href=/documentation/crossmark/>Crossmark</a></li><li><a href=/documentation/cited-by/>Cited-by</a></li><li><a href=/documentation/similarity-check/>Similarity Check</a></li><li><a href=/documentation/retrieve-metadata/>Metadata Retrieval</a></li></ul></div><div class="nav-col mobile order-3"><h2 id=get-involved data-toggle-sibling class="nav-toggle desktop-style">About us<div class=plus-wrapper><div class="plus go-yellow"></div><div class="minus go-yellow minus-1"></div></div></h2><ul id=get-involved-child class=child-list><div class=child-mobile-arrow></div><li><a href=/about/>Overview</a></li><li><a href=/operations-and-sustainability/>Operations & sustainability</a></li><li><a href=/board-and-governance/>Board & 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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. This is the first time we have supplemented our metadata with a third-party data source.</p></div><a href=/blog/retraction-watch-retractions-now-in-the-crossref-api/ class=nav2019__post-readmore>...Find out more</a></div><div class="nav-col nav2019__post"><img class=profile-pic src=https://www.crossref.org//images/staff/ed17-b-thumbnail.png alt='Ed Pentz' height=57 width=57><div class=nav2019__post-text><h5>2025 January 28</h5><h3><a href=/blog/posi-2.0-feedback/>POSI 2.0 feedback</a></h3><p>As a provider of foundational open scholarly infrastructure, Crossref is an adopter of the Principles of Open Scholarly Infrastructure (POSI). In December 2024 we posted our updated POSI self-assessment. POSI provides an invaluable framework for transparency, accountability, susatinability and community alignment. There are 21 other POSI adopters. Together, we are now undertaking a public consultation on proposed revisions for a version 2.0 release of the principles, which would update the current version 1.</p></div><a href=/blog/posi-2.0-feedback/ class=nav2019__post-readmore>...Find out more</a></div><div class="nav-col nav2019__post"><img class=profile-pic src=https://www.crossref.org//images/staff/dominika-thumbnail.jpg alt='Dominika Tkaczyk' height=57 width=57><div class=nav2019__post-text><h5>2025 January 08</h5><h3><a href=/blog/metadata-matching-beyond-correctness/>Metadata matching: beyond correctness</a></h3><p>https://doi.org/10.13003/axeer1ee In our previous entry, we explained that thorough evaluation is key to understanding a matching strategy’s performance. While evaluation is what allows us to assess the correctness of matching, choosing the best matching strategy is, unfortunately, not as simple as selecting the one that yields the best matches. Instead, these decisions usually depend on weighing multiple factors based on your particular circumstances. This is true not only for metadata matching, but for many technical choices that require navigating trade-offs.</p></div><a href=/blog/metadata-matching-beyond-correctness/ class=nav2019__post-readmore>...Find out more</a></div><div class="nav-col nav2019__post"><img class=profile-pic src=https://www.crossref.org//images/staff/ginny_thumbnail.png alt='Ginny Hendricks' height=57 width=57><div class=nav2019__post-text><h5>2024 December 12</h5><h3><a href=/blog/a-progress-update-and-a-renewed-commitment-to-community/>A progress update and a renewed commitment to community</a></h3><p>Looking back over 2024, we wanted to reflect on where we are in meeting our goals, and report on the progress and plans that affect you - our community of 21,000 organisational members as well as the vast number of research initiatives and scientific bodies that rely on Crossref metadata. In this post, we will give an update on our roadmap, including what is completed, underway, and up next, and a bit about what’s paused and why.</p></div><a href=/blog/a-progress-update-and-a-renewed-commitment-to-community/ class=nav2019__post-readmore>...Find out more</a></div></div><div class=footer-colours></div></div></div><div class=logo><a class=crossref-brand href=https://www.crossref.org/><img class=site-logo src=https://www.crossref.org//img/crossref-logo-reverse.svg alt="Crossref logo"></a></div></div><div class=site-header><div class="container-fluid site-header-inner"><div class=menu-wrap><ul class=menu-icon data-toggle-nav=nav2019><li><div class=nav-burger><span></span> <span></span> <span></span></div></li><li>Menu</li></ul></div><div class=social-icons><a href=https://bsky.app/profile/crossref.bsky.social><i class="fab fa-bluesky" aria-hidden=true></i> </a><a rel=me href=https://mastodon.online/@crossref><i class="fab fa-mastodon" aria-hidden=true></i> </a><a 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