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. 19 shown for “John Walker” — 64 records examined, 21 dropped by the rights gate.
Archives queried 2026-09-01 10:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Colt Walker Percussion Revolver, serial no. 1017
Samuel Colt · 1847

John Walker Maury
Leopold Grozelier, 1830 - 1865 · 1855

Penny Picture Display, Savannah
Walker Evans · 1936

John Walker Maury
Leopold Grozelier, 1830 - 1865 · 1855

Mary, Queen of Scots arrested by the Earl of Bothwell
John Walker · September 28, 1792

Portrait of John Walker Maury (1809-1855)
Grozelier, Leopold 1830-1865 · 1855

Scenes from the Life of Saint John the Baptist
Francesco Granacci (Francesco di Andrea di Marco) · ca. 1506–7

A Critical Pronouncing Dictionary and Expositor of the English Language
Artist not stated in the record

Saint John the Baptist Bearing Witness
Francesco Granacci · ca. 1506–7

Mimulus glabratus Kunth
Artist not stated in the record · 28 Nov 1965

Armet
Artist not stated in the record · ca. 1500–1510

Mimulus glabratus Kunth
Artist not stated in the record · 1 Dec 1965

Linen Press
Byrdcliffe Arts and Crafts Colony · ca. 1904

Mimulus glabratus Kunth
Artist not stated in the record · 27 Nov 1965
Sisymbrium altissimum L.
Artist not stated in the record · 29 Jun 2013
Ribes aureum Pursh
Artist not stated in the record · 29 Jun 2013

Robinsonia masafuerae Skottsb.
Artist not stated in the record · 4 Dec 1965

Aristotelia sp.
Artist not stated in the record · 30 Nov 1965

Centaurea melitensis L.
Artist not stated in the record · 8 Dec 1965
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. 582 matched · 24 examined · 17 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.7 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 275960 matched · 40 examined · 4 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 2026-09-01 10:55 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.