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. 23 shown for “Cooper, John H.” — 64 records examined, 10 dropped by the rights gate.
Archives queried 2026-09-05 23:35 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Doge Alvise Mocenigo (1507–1577) Presented to the Redeemer
Jacopo Tintoretto (Jacopo Robusti) · probably 1577

John Cooper Print Machine Patent Model
Cooper, John H. · 1856

Saint John on Patmos
Hans Baldung (called Hans Baldung Grien) · ca. 1511

Crocidium pugetense H. St. John
Artist not stated in the record

The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25

Sisyrinchium inflatum (Suksd.) H. St. John
Artist not stated in the record

Tapestry with Armorial Bearings and Badges of John, Lord Dynham
Artist not stated in the record · ca. 1488–1501

Center table
John Henry Belter · ca. 1855

Sticherus flabellatus (R. Br.) H. St. John
Artist not stated in the record · 30 Nov 1949

Sofa
John Henry Belter · 1850–60

Sticherus flabellatus (R. Br.) H. St. John
Artist not stated in the record · 24 Mar 1949

Sofa
John Henry Belter · 1850–60

Lysichiton americanus Hultén & H. St. John
Artist not stated in the record · 8 Aug 2003

Armchair
John Henry Belter · 1850–60

Lysichiton americanus Hultén & H. St. John
Artist not stated in the record · 8 Aug 2003

Altarpiece with Christ, Saint John the Baptist, and Saint Margaret
Andrea da Giona · 1434

Lysichiton americanus Hultén & H. St. John
Artist not stated in the record · 8 Aug 2003

Side Chair
John Finlay · 1815–20

Lysichiton americanus Hultén & H. St. John
Artist not stated in the record · 8 Aug 2003

Saint John the Baptist
Juan Martínez Montañés · ca. 1620–30

Lysichiton americanus Hultén & H. St. John
Artist not stated in the record · 8 Aug 2003

Salisbury Cathedral from the Bishop's Grounds
John Constable · ca. 1825

Sticherus flabellatus (R. Br.) H. St. John
Artist not stated in the record · Transcribed d/m/y: 17/10/79
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. 8697 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. 1163710 matched · 40 examined · 6 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 2026-09-05 23:35 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.