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. 24 shown for “Grain Serving Vessel (Dou)” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-09-02 19:54 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Grain Serving Vessel (Dou)
Artist not stated in the record · 5th–3rd century BCE
Venetian
Reed & Barton, American, 1824–2015 · ca. 1880–85
Ritual grain serving vessel (Dou)
Artist not stated in the record · 5th century BCE
Venetian
Reed & Barton, American, 1824–2015 · ca. 1880–85
Food serving vessel (dou)
Artist not stated in the record · late 6th–early 5th century BC
Styphelia albicans (Brongn. & Gris) Sleumer
Artist not stated in the record
Food serving vessel (Dou)
Artist not stated in the record · 5th–4th century BCE
Architect's Table
David Roentgen, German, 1743–1807 · ca. 1780–1795
Grain Serving Vessel (Dui)
Artist not stated in the record · ca. 5th century BCE
Sesamoides interrupta (Boreau) G. López
Artist not stated in the record · 21 Aug 1890
Grain serving vessel (dui)
Artist not stated in the record · ca. 5th century BCE
Rhododendron hodgsonii Hook. f.
Artist not stated in the record · 26 May 1967
Grain serving vessel (gui)
Artist not stated in the record · early 9th century BCE
Cyathea muricata (Willd.) Fée
Artist not stated in the record · conte l'armie 1896
Grain serving vessel (Gui)
Artist not stated in the record · late 11th–early 10th century BCE
Ipomoea horsfalliae Hook.
Artist not stated in the record · 1893
Grain serving vessel (Gui)
Artist not stated in the record · 10th century BCE
Ipomoea repanda Jacq.
Artist not stated in the record · 1892
Food serving vessel (dui)
Artist not stated in the record · early 6th century BCE
Medicago intertexta (L.) Mill.
Artist not stated in the record · Transcribed d/m/y: 28/5/95
Grain serving vessel (Gui)
Artist not stated in the record · 11th–10th century BCE
Sinodolichos lagopus (Dunn) Verdc.
Artist not stated in the record · 14 Feb 1933
Grain serving vessel (Gui)
Artist not stated in the record · ca. 9th century BCE
Sinodolichos lagopus (Dunn) Verdc.
Artist not stated in the record · 14 Feb 1933
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. 71 matched · 24 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.12 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 177396 matched · 40 examined · 16 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 2026-09-02 19:54 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.