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 “Group of B.M. F 308” — 64 records examined, 13 dropped by the rights gate.
Archives queried 2026-08-27 21:31 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Terracotta hydria (water jar)
Group of B.M. F 308 · ca. 340–330 BCE
Isertia laevis (Triana) B.M. Boom
Artist not stated in the record · 17 Dec 1942
Lion Ornament
Asante-Akan artist · 19th century
Isertia laevis (Triana) B.M. Boom
Artist not stated in the record · 27 Mar 1987
Terracotta column-krater (bowl for mixing wine and water)
Group of Boston 00.348 · ca. 360–350 BCE
Rogersonanthus quelchii (N.E. Br.) Maguire & B.M. Boom
Artist not stated in the record · Jan 1949
Marble grave stele with a family group
Artist not stated in the record · ca. 360 BCE
Tetrapollinia caerulescens (Aubl.) Maguire & B.M. Boom
Artist not stated in the record · 21 Nov 1946
Medallion with Saint Matthew from an Icon Frame
Artist not stated in the record · ca. 1100
Rogersonanthus quelchii (N.E. Br.) Maguire & B.M. Boom
Artist not stated in the record · Oct 1947
Medallion with Saint Peter from an Icon Frame
Artist not stated in the record · ca. 1100
Gordonia chrysandra Cowan
Artist not stated in the record · Mar 1923
Medallion with Saint George from an Icon Frame
Artist not stated in the record · ca. 1100
Isertia laevis (Triana) B.M. Boom
Artist not stated in the record · 23 May 1980
Medallion with Saint Paul from an Icon Frame
Artist not stated in the record · ca. 1100
Ternstroemia lineata subsp. chalicophila (Loes.) B.M. Barthol.
Artist not stated in the record · 13 Jan 2015
Medallion with the Virgin from an Icon Frame
Artist not stated in the record · ca. 1100
Gordonia chrysandra Cowan
Artist not stated in the record · Aug 1922
Medallion with Saint John the Baptist from an Icon Frame
Artist not stated in the record · ca. 1100
Gordonia chrysandra Cowan
Artist not stated in the record · Sep 1922 to Oct 1922
Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32
Gordonia chrysandra Cowan
Artist not stated in the record · Sep 1922 to Oct 1922
Virgin and Child
Follower of Rogier van der Weyden (Master of the Saint Ursula Legend Group, Netherlandish, active late 15th century) · ca. 1480–90
Chroomonas americana (B.M. Davis) D.R.A.Hill
Artist not stated in the record · 27 Apr 1912
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. 417 matched · 24 examined · 2 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. 3290997 matched · 40 examined · 11 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 21:31 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.