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 “Project for a Dado” — 64 records examined, 4 dropped by the rights gate.
Archives queried 2026-09-03 15:09 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Dado Panel
Artist not stated in the record · 10th century
Project for a Dado
Artist not stated in the record · early 19th century
Dado Panel
Artist not stated in the record · 10th century
Sketches for Altars
Artist not stated in the record · 1725–1775
Painted Dado Panels
Artist not stated in the record · 9th century
Elevation of an altar retable for a project
Artist not stated in the record · ca. 1570-1600
Seasons and Elements (Summer) (set of four)
Charles Le Brun · ca. 1683
Project for a Sepulchral Monument
Artist not stated in the record · 1600–1625
Seasons and Elements (Fire) (set of four)
Charles Le Brun · ca. 1683
Project for a Window Case
Artist not stated in the record · 1650–1700
Seasons and Elements (Spring) (set of four)
Charles Le Brun · ca. 1683
Design for a Panel
Artist not stated in the record · 1785
Fragment of Inscription, Found behind Stucco Dado Panel
Artist not stated in the record · 9th century
Designs for Five Mausoleums
Giuseppe Barberi, Italian, 1746–1809 · 1795
The Apotheosis of the Spanish Monarchy
Giovanni Battista Tiepolo · 1760s
Project: the elevation of an altar, intended to be executed with colored marbles
Artist not stated in the record · 1770–1790
The Apotheosis of the Spanish Monarchy
Giovanni Battista Tiepolo · 1760s
Project for the Painted Decoration of a Dome
Artist not stated in the record · ca. 1750
A Hypocrite and a Slanderer
Franz Xaver Messerschmidt · ca. 1770–83
Design for the Decoration of a Frieze
Filippo Marchionni, Italian, 1732–1805 · 1750–75
Baptism of Christ
Alessandro Algardi · second half of the 17th century
Dado
Artist not stated in the record · ca. 1820
Bronze man and centaur
Artist not stated in the record · ca. 750 BCE
Project for an altar
Artist not stated in the record · ca. 1780
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. 2554 matched · 24 examined · 4 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. 2503121 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 2026-09-03 15:09 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.