OpenCitations Meta
Arcangelo Massari, Fabio Mariani, Ivan Heibi, Silvio Peroni, David Shotton

TL;DR
OpenCitations Meta is a comprehensive, open, and interoperable bibliographic database that assigns persistent identifiers to scholarly publications, enhancing data quality, performance, and reuse in line with Open Science principles.
Contribution
It introduces a new database with globally persistent identifiers, internal metadata hosting, and automated curation, improving upon previous reliance on external APIs and ensuring data integrity.
Findings
Largest bibliographic metadata source using Semantic Web technologies
Automated data curation with deduplication and error correction
Enhanced performance and interoperability through internal hosting and standards
Abstract
OpenCitations Meta is a new database for open bibliographic metadata of scholarly publications involved in the citations indexed by the OpenCitations infrastructure, adhering to Open Science principles and published under a CC0 license to promote maximum reuse. It presently incorporates bibliographic metadata for publications recorded in Crossref, DataCite and PubMed, making it the largest bibliographic metadata source using Semantic Web technologies. It assigns new globally persistent identifiers (PIDs), known as OpenCitations Meta Identifiers (OMIDs) to all bibliographic resources, enabling it both to disambiguate publications described using different external PIDS (e.g., a DOI in Crossref and a PMID in PubMed), and to handle citations involving publications lacking external PIDs. By hosting bibliographic metadata internally, OpenCitations Meta eliminates its former reliance on API…
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