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 “Mary Parker” — 64 records examined, 28 dropped by the rights gate.
Archives queried 2026-08-27 08:20 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Sampler
Mary Parker · 1805

Aeshna californica
Artist not stated in the record · 28 Jun 1985

Cup with cover and stand (one of a pair)
John Parker · 1766/67

Aphanamixis polystachya (Wall.) R. Parker
Artist not stated in the record · Jun 1907

L'Arlésienne: Madame Joseph-Michel Ginoux (Marie Julien, 1848–1911)
Vincent van Gogh · 1888–89

Aphanamixis polystachya (Wall.) R. Parker
Artist not stated in the record · May 1927 to Jul 1927

Self-Portrait with Two Pupils, Marie Gabrielle Capet (1761–1818) and Marie Marguerite Carraux de Rosemond (1765–1788)
Adélaïde Labille-Guiard · 1785

Aphanamixis polystachya (Wall.) R. Parker
Artist not stated in the record · Jun 1907

Marie Joséphine Charlotte du Val d'Ognes (1786–1868)
Marie Denise Villers · 1801

Oscillatoria retzii C. Agardh
Artist not stated in the record · 23 Jul 1941

Joséphine-Éléonore-Marie-Pauline de Galard de Brassac de Béarn (1825–1860), Princesse de Broglie
Jean Auguste Dominique Ingres · 1851–53

Aphanamixis polystachya (Wall.) R. Parker
Artist not stated in the record · May 1927 to Jul 1927

Portrait of Nicolas Trigault in Chinese Costume
Peter Paul Rubens · 1617

Schizothrix calcicola Gomont
Artist not stated in the record · 20 Jul 1940

Anthony Butler
Charles Willson Peale · 1782

Schizothrix calcicola Gomont
Artist not stated in the record · 11 May 1940

Mary, Queen of Scots (frontispiece, from "The Abbot," volume I)
Annin & Smith · 1831

Microcoleus vaginatus (Vaucher) Gomont ex Gomont
Artist not stated in the record · 11 May 1940

Cheese stand
John Parker · 1764

Microcoleus vaginatus (Vaucher) Gomont ex Gomont
Artist not stated in the record · 11 May 1940

Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788

Microcoleus vaginatus (Vaucher) Gomont ex Gomont
Artist not stated in the record · 11 May 1940

Armchair (Fauteuil à la reine) (one of a pair) (part of a set)
Georges Jacob · ca. 1780–85

Verrucaria calciseda DC.
Artist not stated in the record · 20 Oct 1941
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. 151 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. 59748 matched · 40 examined · 26 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 08:20 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.