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 “Steatite quadrangular seal” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-08-28 06:56 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Steatite quadrangular seal
Artist not stated in the record · late 8th–early 7th century BCE
Solanum quadrangulare Thunb. ex L. f.
Artist not stated in the record
Seal
Artist not stated in the record · ca. 1950 B.C.
Geniostoma quadrangulare Fosberg
Artist not stated in the record · 29 Jan 1980
Seal
Artist not stated in the record · ca. 1961–1840 B.C.
Garcinia quadrangulare Engl.
Artist not stated in the record · Nov 1913
Seal
Artist not stated in the record · ca. 1550–1300 BCE
Glyptopetalum quadrangulare Prain ex King
Artist not stated in the record
Steatite Seal
Artist not stated in the record · ca. 1800–1700 BCE
Combretum quadrangulare Kurz
Artist not stated in the record · 17 Apr 1959
Steatite lentoid seal
Artist not stated in the record · ca. 1200–1050 BCE
Phoradendron quadrangulare (Kunth) Griseb.
Artist not stated in the record · 5 Jan 1969
Steatite Stamp Seal
Artist not stated in the record · ca. 1900–1700 BCE
Combretum quadrangulare Kurz
Artist not stated in the record · Mar 1870
Steatite scaraboid seal
Artist not stated in the record · 8th century BCE
Duosperma quadrangulare (Klotzsch) Brummitt
Artist not stated in the record · 26 Jun 1950
Steatite Stamp Seal
Artist not stated in the record · ca. 1800–1700 BCE
Duosperma quadrangulare (Klotzsch) Brummitt
Artist not stated in the record · 15 Jul 1950
Steatite conoid seal
Artist not stated in the record · ca. 2400–2200 BCE
Phoradendron quadrangulare (Kunth) Griseb.
Artist not stated in the record · 9 Dec 1900
Steatite cylindrical seal
Artist not stated in the record · ca. 2400–2200 BCE
Phoradendron quadrangulare (Kunth) Griseb.
Artist not stated in the record · 1891 to 1892
Steatite reel-shaped seal
Artist not stated in the record · ca. 1750–1600 BCE
Phoradendron quadrangulare (Kunth) Griseb.
Artist not stated in the record · 1927
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. 584 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. 12138 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 2026-08-28 06:56 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.