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 “Adrian van Melar” — 64 records examined, 27 dropped by the rights gate.
Archives queried 2026-09-01 22:31 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The head of the Virgin looking up to the right, in an oval frame, after Reni
Adrian van Melar · ca. 1650–67
Papaver radicatum Rottb.
Artist not stated in the record · 6 Aug 1951
Head of Christ looking up with crown of thorns, in an oval frame, after Reni
Adrian van Melar · ca. 1653–67
Arenaria norvegica Gunnerus
Artist not stated in the record · 28 Jul 1938
The Birth and Naming of Saint John the Baptist; (reverse) Trompe-l'oeil with Painting of The Man of Sorrows
Bernard van Orley · ca. 1514–15
Ox and Three Sheep
Artist not stated in the record · 1670
The Annunciation
Joos van Cleve · ca. 1525
The Two Sheep
Artist not stated in the record · 1670
View of Bad Schandau at the River Elbe with the Winterberg
Adrian Zingg · late 18th–early 19th century
The Ewe
Artist not stated in the record · 1670
Pope Adrian VI (Adriaen Floriszoon van Trusen of Utrecht 1459-1523) Pope 1522-23
Unknown · 1600–1699
A Goat
Artist not stated in the record · ca. 1670
Venus and Cupid
Lorenzo Lotto · 1520s
Cow and Two Sheep at the Foot of a Tree
Artist not stated in the record · 1670
Plate 4: equestrian statue of Caligula, seen three-quarters to the left, wearing a winged helmet and holding double-headed arrows, a military scene in the background, from 'Roman Emperors on Horseback'
Adriaen Collaert · ca. 1587–89
Gibasis oaxacana D.R. Hunt
Artist not stated in the record · 26 Mar 1982
Madonna and Child with the Infant Saint John the Baptist, Three Women, and an Angel
Adriaan de Weerdt · mid 16th century
Gibasis oaxacana D.R. Hunt
Artist not stated in the record · 26 Mar 1982
Plate 5: equestrian statue of Claudius, seen from behind, a naval competition at right in the background, from 'Roman Emperors on Horseback'
Adriaen Collaert · ca. 1587–89
Tuna fishing
Karel van Mallery, Flemish, 1571 – 1635 · ca. 1596 or after
Plate 11: equestrian statue of Titus, seen three-quarters to the right, Mount Vesuvius erupting at left in the background, from 'Roman Emperors on Horseback'
Adriaen Collaert · ca. 1587–89
Elephantopus mollis Kunth
Artist not stated in the record · 16 Oct 1979
Plate 7: equestrian statue of Galba, in profile to the left, with a beheading scene in the background, from 'Roman Emperors on Horseback'
Adriaen Collaert · ca. 1587–89
Tapirira guianensis Aubl.
Artist not stated in the record · 13 Oct 1979
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. 47 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. 29514 matched · 40 examined · 25 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 2026-09-01 22:31 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.