Evidence level 1
Official rules and standards
Government sources can establish legal character categories or standard kanji information. They do not prove that a complete name or a particular reading is common.
Trust & editorial standards
JapanNames separates sourced facts, editorial explanation, and randomized suggestions. This page describes how a candidate record becomes a published page and where the evidence stops.
Last reviewed: July 26, 2026
A higher-level source is not automatically suitable for every field. The controlling question is whether the source directly supports the specific claim.
Evidence level 1
Government sources can establish legal character categories or standard kanji information. They do not prove that a complete name or a particular reading is common.
Evidence level 2
Dictionary records support attested spelling–reading pairs and literal character glosses. Dictionary inclusion is not a frequency estimate or a promise that every bearer uses the same interpretation.
Evidence level 3
Rankings support observations about the stated sample, year, spelling, or reading. Their sample boundaries remain visible and are not rewritten as national census facts.
Evidence level 4
Explanatory notes connect cited facts and identify uncertainty. They must not be presented as if a source directly stated an author’s interpretation.
The full catalog, including every source's stated limitations and access date, is available on the Sources & Evidence page.
A record is split into checkable fields: kanji, reading, name type, usage note, literal gloss, ranking, and relationships.
Each source is used only for the statements listed in its supports field, with its limitations retained.
Names are checked as spelling–reading pairs. A matching romaji form or pronunciation alone is not enough.
Required facts, citations, review status, date, and at least one useful editorial relationship must all pass.
The production build checks canonical URLs, headings, structured data, internal targets, sitemaps, and static output.
A supported correction triggers re-review of the affected field and any dependent pages. Dates change only after an actual review.
Every displayed kanji variant carries its own reading, meanings, usage note, confidence, and source IDs. A page is not published from romaji alone.
Dictionary evidence supports the spelling and reading; ranking evidence remains tied to its survey year, sample, share, and published precision.
Collections include only exact reviewed spellings whose qualifying kanji has direct dictionary support. A shared pronunciation is not meaning evidence.
The full combination is randomized. Detail links appear only when the component's exact kanji and hiragana match a reviewed record.
Automation checks completeness, relationships, path safety, metadata, sitemaps, and static output. It cannot decide whether a nuanced cultural explanation is fair, whether a source has been interpreted in context, or whether a proposed name is appropriate for a particular person. Those claims remain bounded or unpublished until they can be reviewed.
Publication and update triggers are defined in the Content Review Policy. Readers can challenge a claim through Corrections & Feedback.
These pages describe what the site checks, what its sources can support, and how readers can challenge a published claim.
How JapanNames separates sourced facts, editorial interpretation, and randomized suggestions.
The source catalog, evidence scope, limitations, and access dates used by published records.
Publication gates, review statuses, update triggers, and unpublishing rules.
Prepare, copy, or download a structured correction report without sending form data.
Methodology version reviewed 2026-07-26.