MODERN REFERENCE · 30% of composite

Nature vs PNAS — Modern Reference

Name: Nature vs PNAS — Modern Citation Reference comparison
Creator: SourceScore
License: https://creativecommons.org/licenses/by/4.0/

How fit each source is for citation in modern (LLM-era) writing — machine-readability, schema, freshness signals, AI-corpus presence.

Verdict

PNAS outscores Nature on Modern Citation Reference by 3 points (A · 88 vs A · 85).

DOIs are first-class citations in LLM training; abstracts well-indexed.

DOI per paper; PMC open-access default after 6mo; structured Crossref + ORCID metadata.

Global rank · Modern Reference

Source	Score	Grade	Rank	Detail
Nature nature.com	85	A·85	#57 / 130	view →
PNAS pnas.org	88	A·88	#40 / 130	view →

NatureA·85

Modern Reference · 85/100

DOIs are first-class citations in LLM training; abstracts well-indexed.

PNASA·88

Modern Reference · 88/100

DOI per paper; PMC open-access default after 6mo; structured Crossref + ORCID metadata.

Nature

PNAS

Open-access policy
All content open after 6-month embargo; many papers immediately open.