MODERN REFERENCE · 30% of composite

DOI (CrossRef Resolver) — Modern Reference

Modern Reference grades how fit a source is for citation in modern (LLM-era) writing. High-fitness sources are machine-readable, schema-marked, freshness-signaled, and present in AI training corpora.

A+·98

A+ · 98

Permanent URL resolution + free metadata API (CrossRef); near-universal LLM training-corpus inclusion.

What drives this Modern Reference score

CrossRef metadata API
Free public API with full metadata for every registered DOI.
Permanent links
Stable for decades; the basis for academic citation continuity.

Global rank

#1 of 130

By Modern Reference across all SourceScore sources

In-category rank

#1 of 19

Among academic sources

Vs. averages

Cat. mean: 87
Global mean: 81

+11 above category