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 “Limestone Keystone from a Vaulted Ceiling” — 64 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-28 12:51 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Limestone Keystone from a Vaulted Ceiling
Artist not stated in the record · ca. 1220–30
Design for Ceiling Decoration, a Barrel Vault
Giuseppe Barberi, Italian, 1746–1809 · 1790–1800
Keystone from a Vaulted Ceiling
Artist not stated in the record · ca. 1220–30
Design for Ceiling Decoration, a Barrel Vault
Giuseppe Barberi, Italian, 1746–1809 · 1790–1800
Part of a Ceiling from the Tomb of Bakenrenef
Artist not stated in the record · 664–610 BCE
Design for Ceiling Decoration, a Barrel Vault
Giuseppe Barberi, Italian, 1746–1809 · 1790–1800
Keystone from an Arch with Cross and Acanthus Leaves
Artist not stated in the record · 4th–5th century
Design for the Decoration of Barrel Vaulted Ceiling
Giuseppe Barberi, Italian, 1746–1809 · 1790-1800
Chapter House from Notre-Dame-de-Pontaut
Artist not stated in the record · 12th century
Design for Ceiling Decoration, a Barrel Vault
Giuseppe Barberi, Italian, 1746–1809 · 1790–1800
The Apotheosis of the Spanish Monarchy
Giovanni Battista Tiepolo · 1760s
Design for a Painted Ceiling
Marco Capizucchi, Italian, 1784 - 1844 · 1830–39
Commode
Jean François Cuvilliés the Elder · ca. 1735–40
Elevation of Drawing Room Entrance Wall with Vaulted Ceiling
Giuseppe Barberi, Italian, 1746–1809 · 1790–1800
Composite Papyrus Capital
Artist not stated in the record · 380–343 BCE
Design for Ceiling Decoration, a Barrel Vault
Giuseppe Barberi, Italian, 1746–1809 · 1790–1800
Corbel with a Pair of Beard-Pulling Acrobats
Artist not stated in the record · ca. 1150–1200
Project for a Painted Oblong Ceiling
Flaminio Innocenzi Minozzi, Italian, 1735 – 1817 · 1800–1815
Relief from the North Wall of a Chapel of Ramesses I
Artist not stated in the record · ca. 1299–1290 BCE
Stage Design: Vaulted Interior
Artist not stated in the record · 1650–1700
Relief from the West Wall of a Chapel of Ramesses I
Artist not stated in the record · ca. 1299–1290 BCE
Design for a Ceiling Frieze
Artist not stated in the record · ca. 1680
Relief from the South Wall of a Chapel of Ramesses I
Artist not stated in the record · ca. 1299–1290 BCE
Stage Design, View into Palace
Artist not stated in the record · early 18th century
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. 112 matched · 24 examined · 1 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. 1963026 matched · 40 examined · 0 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 2026-08-28 12:51 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.