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. 18 shown for “Matthäus Baur II” — 64 records examined, 21 dropped by the rights gate.
Archives queried 2026-08-27 14:19 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Standing cup with cover
Matthäus Baur II · 1695–1700
View of Augsburg before t
Wenceslaus Hollar, Bohemian (active England),1607–1677 · 1665
The Orpheus Cup
Jan Vermeyen · 1641–42, the jeweled elements on the lid in the form of animals, amorini holding bow and quiver, and the statuettes of Orpheus and Diana, Prague, ca.1600
Cupania glabra Sw.
Artist not stated in the record · 12 Oct 1921 or 10 Dec 1921
Plate 2: Emperor Augustus on Horseback, from "The First Twelve Emperors of Ancient Rome"
Matthäus Merian the Elder · 1610–50
Cupania glabra Sw.
Artist not stated in the record · 12 Oct 1921 or 10 Dec 1921
Melchior, after Three Magi series by Jacques Bellange
Matthäus Merian the Elder · ca. 1615
Scutellaria integrifolia L.
Artist not stated in the record · 26 Apr 1920
Caspar, after Three Magi series by Jacques Bellange
Matthäus Merian the Elder · ca. 1615
Cirsium horridulum Michx.
Artist not stated in the record · 11 Apr 1921
Shallow bronze bowl with swinging handles
Artist not stated in the record · 7th–6th century BCE
Psychotria nervosa Sw.
Artist not stated in the record · 26 Apr 1920
Evolvulus glaber Spreng.
Artist not stated in the record · 12 Dec 1921
Dicerandra frutescens Shinners
Artist not stated in the record · 8 Jan 1925
Strumpfia maritima Jacq.
Artist not stated in the record · 12 Oct 1921 or 10 Dec 1921
Vaccinium myrsinites Lam.
Artist not stated in the record · 26 Apr 1920
Coreopsis lanceolata L.
Artist not stated in the record · 28 Apr 1926
Ageratum houstonianum Mill.
Artist not stated in the record · 9 Jan 1925
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. 103 matched · 24 examined · 18 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.6 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 34124 matched · 40 examined · 3 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 14:19 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.