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 “John Sell Cotman” — 64 records examined, 24 dropped by the rights gate.
Archives queried 2026-08-26 22:59 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The east end of Rievaulx Abbey, Yorkshire
John Sell Cotman · 1803

Pilosella caespitosa (Dumort.) P. D. Sell & C. West
Artist not stated in the record · 2 Jul 1960

Farm Building by a Pond
John Sell Cotman · 1808–11(?)

Pilosella caespitosa (Dumort.) P. D. Sell & C. West
Artist not stated in the record · 11 Jul 1912

Doorway, Heckingham Church
John Sell Cotman · 1816–18

Metrosideros polymorpha var. incana H. St. John
Artist not stated in the record · 3 Sep 1938

Boats off the coast, storm approaching
John Sell Cotman · 1830

Pilosella caespitosa (Dumort.) P. D. Sell & C. West
Artist not stated in the record · 7 Jun 1983

The Town of Beccles from the Bridge, Suffolk
John Sell Cotman · ca. 1818

Pilosella caespitosa (Dumort.) P. D. Sell & C. West
Artist not stated in the record · 6 Jul 1936

A figure resting in a ruined tower
John Sell Cotman · 1810–40

Metrosideros polymorpha var. glaberrima (H. Lév.) H. St. John
Artist not stated in the record · 2 Sep 1938

Capel Carrig, Caernarvonshire
John Sell Cotman · 1838

Metrosideros polymorpha var. glaberrima (H. Lév.) H. St. John
Artist not stated in the record · 2 Sep 1938

Lakenham, Near Norwich
John Sell Cotman · 1838

Broadside announcing the sale of a man, Dick, and a girl, Lydia
Artist not stated in the record · 1857

The Abbatial House, Abbey of St. Ouen, Rouen
John Sell Cotman · 1824–31

x C. serra (Sw.) Farw.
Artist not stated in the record · 4 Feb 1925

Near Durham
John Sell Cotman · 1838

Weedhopper JC-24C
Weedhopper of Utah

Ruined Castle
John Sell Cotman · 1823–42
Allophylus crassinervis Radlk.
Artist not stated in the record · 17 Jan 2015

Clearing with a lumber mill
John Middleton · 1847 (?)

Asplenium alatum Humb. & Bonpl. ex Willd.
Artist not stated in the record · 12 Mar 1983 to 13 Mar 1983
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. 188 matched · 24 examined · 2 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. 265693 matched · 40 examined · 22 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 2026-08-26 22:59 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.