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arXiv · 2601.04015

Examining persistence of European open repository infrastructure and its diffusion in the scholarly record

George Macgregor·Joy Davidson
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Abstract

This article seeks to determine the extent to which the principle of persistence is observed by repositories and the organizations that operate them. We also evaluate the impact that negative repository persistence levels may be having on the scholarly record. We do this by interrogating and combining data about European repositories from several repository registries and web scraped sources, including the Internet Archive's Wayback Machine, thereby creating a unique dataset of historic repository locations and their OAI-PMH endpoints. We then use this data as the basis for text mining CORE, a vast corpus of scholarly outputs, to determine the extent to which impersistent European repository content has permeated the scholarly literature. Our findings indicate over a fifth of European repositories (> 20%) could be classified as 'dead', with an even greater proportion (> 40%) of the machine interfaces associated with these repositories similarly dead. Problematically, our analysis indicates that circa 12,000 unique scholarly works cite, refer to, or actively used this repository content, amounting to circa 19,000 unique repository locations, all of which are now unretrievable from their stated resource location. Partly owing to limitations in available repository registry data and the existence of 'zombie' repositories, there are reasons to conclude that the total number of scholarly works referring to dead repository content is far higher. We also find evidence of dead repository content entering the current scholarly record, a phenomenon we describe as 'dead on arrival' referencing. We consider the implications of these observations, proffer explanations, and propose possible policy interventions to address the issue of repository persistence. Our dataset also enables us to make several observations about the nature of impersistent repositories, their profile, and their decay rate.

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George Macgregor, Joy Davidson. 2026-01-07. Examining persistence of European open repository infrastructure and its diffusion in the scholarly record. https://arxiv.org/abs/2601.04015

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