Lookup format
This release uses static JSON objects. There is no public query API. See data for the object layout and about for counting rules.
The root manifest points to the latest release and lists all releases. Each immutable v/{release}/manifest.json pins coverage and the release base; v/{release}/build.json records build provenance. Term records use k=t for a token and k=p for a tracked phrase. Count rows are [month, occurrences, articles, front-page occurrences, front-page articles]. Article-union rows are [month, articles, front-page articles]. Month 0 is January 1946.
Article metadata rows are [docid, date, page number, headline, subhead, superhead, author, section]. Full text is never published.