# Wave 0 publisher landscape

**Claim grade:** C4-exploratory
**Audience:** Readers exploring publisher concentration and citation-quality signals.

## Primary metric

- **Mean source rows per projected publisher:** 1140.1956 source rows per projected publisher
- Numerator / denominator: 22803911 / 20000
- Estimator: Arithmetic mean over the reviewed publisher projection.
- Uncertainty: Exploratory projection; entity normalization and truncation bound interpretation.

## Accessibility fallback

The reviewed projection contains 22803911 source rows across 20000 publisher entities.

## Caveats

- This is an exploratory projection, not a population estimate of publisher influence.
- No ranking or causal interpretation is authorized by this card.

## Source configs

`publishers`