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Sources

Every dataset and document this project relies on, ranked by evidence tier. Government records come first.

Evidence tier

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Source registry
Tier	Source	Publisher	Coverage	What we use it for

The full registry of acquired datasets — authority, URL, coverage, download method, retrieval date, file name, and checksum — is in source_registry.csv. Per-file manifests sit alongside the raw downloads. More downloads are on the data page.