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 “Martin” — 64 records examined, 37 dropped by the rights gate.
Archives queried 2026-09-02 11:09 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Young Husband: First Marketing
Lilly Martin Spencer · 1854

Martin Birnbaum
Albert Edward Sterner, 1863 - 1946 · 1915

Approaching Thunder Storm
Martin Johnson Heade · 1859

Maria or Eleanor Martin
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1802

Secretary
Martin Carlin · ca. 1781–85

Martin Van Buren
James Barton Longacre, 11 Aug 1794 - 1 Jan 1869 · 1830

Combination table
Martin Carlin · ca. 1775
Eragrostis macrothyrsa Hack.
Artist not stated in the record · 3 Sep 1937

Mantel clock
Martin · mid-18th century

Martin Van Buren
Albert Newsam, 20 May 1809 - 20 Nov 1864 · 1846

Saint Martin
Artist not stated in the record · 1340–50

Martin Van Buren
Daniel Wright Kellogg, 1807 - 1872 · c. 1836-40

Altar Predella and Socle of Archbishop Don Dalmau de Mur y Cervelló
Francí Gomar · ca. 1456–1458

Martin Van Buren
Charles Fenderich, 1805 - 1887 · 1839

Bust of a Man in a Hat Gazing Upward
Martin Schongauer · ca. 1480–90

Martin Van Buren
Unidentified Artist · c. 1830-40

Martin Folkes (1690–1754)
Jacques-Antoine Dassier · 1740

Martin Van Buren
E. B. & E. C. Kellogg Lithography Company, active c. 1842 - 1867 · 1844

The Censer
Martin Schongauer · 1470–1491

Martin Van Buren
Nathaniel Currier, 27 Mar 1813 - 20 Nov 1888 · c. 1836

Guitar
Christian Frederick Martin · ca. 1838

Martin Van Buren
Klauprech & Menzel Lithography Company, active 1840 - c.1859 · c. 1840

Saint Martin of Tours
Artist not stated in the record · late 15th–early 16th century

Martin Van Buren
E. B. & E. C. Kellogg Lithography Company, active c. 1842 - 1867 · 1844
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. 5776 matched · 24 examined · 10 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. 38671 matched · 40 examined · 27 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 2026-09-02 11:09 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.