OpenCitations Index Database Dump

This OpenCitations (https://opencitations.net/) dataset contains a full dump of the OpenCitations Index Qlever database. It includes citation data between bibliographic entities stored in the OpenCiations Meta.This release includes citation data retrieved from the September 2025 version of Crossref (https://api.crossref.org/snapshots/monthly/2025/09/all.json.tar.gz), as well as the DataCite Public Data File of April 2024 (https://archive.org/details/datacite-2024-04-17).This version of the dataset:Contatins 2,422,432,262 Citations;Coming from 6 different sources: Crossref, Datacite, PubMed, OpenAIRE, JaLC, and the OpenCitations Crowdsourcing service;Compressed size is: 69 GB (7z format)Uncompressed size: 140 GBNumber of triples: 10,172,822,234The data is provided as a multi-part 7zip archive. To extract it, please use the provided extraction scripts (`extract_archive.sh` for Linux/macOS and `extract_archive.bat` for Windows).Usage example (Linux/macOS):bash extract_archive.sh oc-index-qlever-202602.7z.001 ./extracted_dataUsage example (Windows):extract_archive.bat oc-index-qlever-202602.7z.001 .\extracted_dataFor more information, please refer to the following paper: Heibi, I., Moretti, A., Peroni, S., & Soricetti, M. (2024). The OpenCitations Index: Description of a database providing open citation data. Scientometrics. https://doi.org/10.1007/s11192-024-05160-7