Scholarly Infrastructure
Standards, Identifiers & Metadata
Crossref
DOI
ISSN
ISNI
DNB
Indexing, Abstracting & Platform Availability
Google Scholar
Dimensions
Semantic Scholar
BASE
OpenAlex
Archiving & Preservation
CLOCKSS
LOCKSS
Zenodo
Disclaimer: The services listed above perform different functions within the scholarly communication ecosystem, including identifiers, metadata registration, abstracting, discoverability, platform availability, bibliographic metadata services, and digital preservation. Inclusion in any listed service does not by itself imply editorial evaluation, selective indexing, ranking status, endorsement, archival custody, or inclusion in citation indexes unless explicitly confirmed by the relevant provider.