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. 24 shown for “Red-Ground Prayer Rug” — 53 records examined, 20 dropped by the rights gate.
Archives queried 2026-08-27 19:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Red-Ground Prayer Rug
Artist not stated in the record · probably late 18th–early 19th century

Mosen
Artist not stated in the record · late 19th century

Prayer Rug
Artist not stated in the record · late 16th century

Textile
Artist not stated in the record · ca. 1817

Confronted Animal Rug
Artist not stated in the record · 14th century

Carpet fragment
Artist not stated in the record · ca. 1885

Man in Prayer
Rogier van der Weyden · ca. 1440

Carpet fragment
Artist not stated in the record · ca. 1885
'Lotto' Carpet
Artist not stated in the record · 16th century

Palampore
Artist not stated in the record · mid–late 18th century

Carpet with Palm Trees, Ibexes, and Birds
Artist not stated in the record · late 16th–early 17th century

Iceberg Fantasy
Frederic Edwin Church, American, 1826–1900 · June–July 1859

The Emperor's Carpet
Artist not stated in the record · second half 16th century

The Coast at Mt. Desert Island, Maine
Frederic Edwin Church, American, 1826–1900 · 1850–1851

Prayer Rug
Artist not stated in the record · 1210 AH/1795/96 CE

Tent panel
Artist not stated in the record · 1650–1700

Prayer Rug
Artist not stated in the record · 19th century

Piper PA-18 Super Cub
Piper Aircraft Corp. · 1946

"Bellini" Carpet
Artist not stated in the record · 16th–17th century

Lockheed Vega 5B, Amelia Earhart
Lockheed Aircraft Company · 1927-1929
Prayer Rug with Triple Arch Design
Artist not stated in the record · probably late 18th century

Cessna 152 Aerobat
Cessna Aircraft Company, Inc. · 1977

Carpet with Triple-Arch Design
Artist not stated in the record · ca. 1575–90
Receiver, Western Wireless, Type 7, Earhart, 1935 Pacific Flight
Western Wireless · 1930-1934
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. 179 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. 29 matched · 29 examined · 16 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 19:21 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.