Two 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. 16 shown for “Three Sections of Cloister Arcade” — 64 records examined, 18 dropped by the rights gate.
Archives queried 2026-09-04 23:07 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Three Sections of Cloister Arcade
Artist not stated in the record · 15th century

Elevation of a church
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

Frieze
Artist not stated in the record · 1835–45

Side chair
Artist not stated in the record · ca. 1800

Design of a Sepulchral Monument for a Cloister
Carlo Marchionni, Italian, 1702–1786 · ca. 1745

Elevation of a church
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

Proposed Arcade Railway Under Broadway, New York
Ferdinand Mayer and Sons · ca. 1870

Section of an Ornamental Panel
Artist not stated in the record · 1750–1775

Plate in Nouveaux Livre de Paysages (New Book of Landscapes)
Daniel Marot, French, active in the Netherlands and England, 1661–1752 · ca. 1700

Stage Design, Arcaded Palace Hall
Artist not stated in the record · early 18th century

Bust of the Virgin
Artist not stated in the record · ca. 1390–95

View of the Porta Aurea, Palace of Diocletian, Split
Artist not stated in the record · late 18th century

Altarpiece with the Lives of Jesus, Saint John the Baptist, and Saint John the Evangelist
Baldassare degli Embriachi · ca. 1390–1400

Jar
Pipsshank · 1884

The Conquest of Naples by Charles of Durazzo
Master of Charles of Durazzo · 1381–82

Organ Case with Arms of P
Artist not stated in the record · 1655–67
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. 75 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. 2870993 matched · 40 examined · 18 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 2026-09-04 23:07 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.