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. 23 shown for “Petrus van Marum” — 64 records examined, 21 dropped by the rights gate.
Archives queried 2026-09-08 06:36 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Portrait of a Carthusian
Petrus Christus · 1446
Obelisk
Petrus van Marum · ca. 1700–30
A Goldsmith in his Shop
Petrus Christus · 1449
Tephrosia semiglabra Sond.
Artist not stated in the record
Head of Christ (Ecce Homo)
Petrus Christus · ca. 1445
Monopsis decipiens (Sond.) Thulin
Artist not stated in the record · Transcribed d/m/y: 25/1/88
The Annunciation
Petrus Christus · ca. 1445
Teucrium marum L.
Artist not stated in the record · 12 Aug 1867
The Lamentation
Petrus Christus · ca. 1450
Teucrium marum L.
Artist not stated in the record · 188
Views of the Surroundings of Haarlem (Beschryvinge ende lof der stad Haerlem in Holland. In rijm bearbeyd: ende met veele oude ende nieuwe stucken buyten dicht uyt verscheyde kroniken, handvesten, brieven, memorien ofte geheugenissen ende diergelijke schriften verklaerd ende bevestigd)
Claes Jansz. Visscher · 1628
Teucrium marum L.
Artist not stated in the record · 11 Nov 1911
The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38
Teucrium marum L.
Artist not stated in the record · Jul 1853
Rachel Ruysch (1664–1750)
Rachel Ruysch · 1692
Teucrium marum L.
Artist not stated in the record · 6 Jul 1878
Petrus Scriverius (1576–1660)
Frans Hals · 1626
The Standard Bearer (probably Floris Soop, 1604–1657)
Rembrandt (Rembrandt van Rijn) · 1654
Teucrium marum L.
Artist not stated in the record · 8 Aug 1928
The Annunciation
Hans Memling · ca. 1465–70
Teucrium marum L.
Artist not stated in the record · Transcribed d/m/y: 30/6/65
Virgin and Child with Four Angels
Gerard David · ca. 1510–15
Teucrium marum L.
Artist not stated in the record · 28 Jul 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. 102 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. 29344 matched · 40 examined · 21 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 2026-09-08 06:36 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.