OpenTwo archives, queried live.
Every record below comes from The Met or Smithsonian Open Access and was filtered on that archive’s own rights field before it reached this page. 14 shown for “Koike Izumi no Kami Naomasa” — 42 records examined, 5 dropped by the rights gate.
Archives queried 2026-08-27 22:37 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Sword guard (Tsuba) Depicting Crests and Arabesques (家紋散唐草文鐔)
Koike Izumi no Kami Naomasa · late 16th–early 17th century
Fissidens grandifrons Brid.
Artist not stated in the record · 26 Aug 1978
Sword guard (Tsuba) Depicting Crests and Arabesques (家紋散唐草文鐔)
Koike Izumi no Kami Naomasa · late 16th–early 17th century
Dryopteris dickinsii (Franch. & Sav.) Christ
Artist not stated in the record · 26 Jul 1960
Vepris teva Cheek
Artist not stated in the record · 23 Nov 2011
Kallymenia perforata J. Agardh
Artist not stated in the record · 30 Aug 1988
Sargassum yendoi
Artist not stated in the record · 27 Dec 1988
Dictyopteris papenfussii Tak. Tanaka
Artist not stated in the record · 14 Aug 1987
Chara fibrosa C. Agardh ex Bruzelius
Artist not stated in the record · Oct 1895
Champia parvula (C. Agardh) Harv.
Artist not stated in the record · 10 Apr 1987
Scinaia okiensis M. Kajimura
Artist not stated in the record · 14 Aug 1987
Acrosorium yendoi Yamada
Artist not stated in the record · 27 Oct 1986
Bonnemaisonia hamifera P. Hariot
Artist not stated in the record · 10 Apr 1987
Martensia denticulata Harv.
Artist not stated in the record · 30 Aug 1988
Where these records came from.
Two archives are wired, and only two. Each one is filtered on its own rights field — never on a title match, and never on the presence of an image file.
- The Met Collection API (Open Access)Rights field:
isPublicDomain. 2 matched · 2 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.2 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 208631 matched · 40 examined · 5 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.12 shown
These figures describe the pass run at 2026-08-27 22:37 UTC, during this request. A completed pass is kept for 24 hours and replayed for an identical search, which is what keeps repeated queries inside Smithsonian’s 30-requests-per-hour allowance. A pass in which either archive failed to answer is never kept — an outage must not be replayed as though it were a finding about the catalogue.
Wikimedia Commons and the Library of Congress are deliberately not wired. Wikimedia was confirmed, on a live query, to return CC-BY material inside the same result set as genuine public domain works, and filtering it safely has not been designed yet. loc.gov was blocked by bot detection during the source evaluation, so its rights vocabulary has never been observed — and nothing here is built on a field nobody has read.
An image file is a rights claim. It never travels without its field.