We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
Last full accuracy audit: 2026-08-28 · 5 entries checked · 1 flagged · 2 issues confirmed · 1 corrected · 1 still open
Jōmon period — The statement 'Modern Japanese carry about 10–20% autosomal contribution from the Jōmon' is inaccurate; the generally accepted estimate for mainland Japanese is around 10–15%, not 10–20%.
Jōmon period — The claim that Y-chromosome Jōmon ancestry is 'typically estimated at around 1–5% (mainly haplogroup D1b)' is a factual oversimplification, as it fails to note regional variation (e.g., in Okinawa, D1b frequencies can be 30–40%).
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