OpenTwo 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. 12 shown for “Isaac Platt” — 49 records examined, 37 dropped by the rights gate.
Archives queried 2026-08-28 22:42 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Looking Glass
Isaac Platt · 1829–35
Peter Platt
Dwight Case Sturges, 1874 - 1940 · c. 1917
Looking Glass
Isaac Platt · 1829–35
Abutilon theophrasti Medik.
Artist not stated in the record · 22 Sep 1967
Tankard
Thomas Hamersley · ca. 1763
Sida spinosa L.
Artist not stated in the record · 22 Sep 1967
Sampler
Polly Platt · 1809
Photograph of airmail hanger in North Platte, Nebraska
Artist not stated in the record · c. 1924
The Fortune-Teller
Georges de La Tour · probably 1630s
Niagara Falls from the Canadian Side
Platt D. Babbitt · ca. 1850–1855
Locrian Ajax (Ajax Locrien), from "Les Images ou Tableaux de platte peinture des deux Philostrates Sophistes grecs..."
Thomas de Leu · 1614–15
View of Broadway, New-York, from Exchange Alley to Morris Street, West Side
Frederick Heppenheimer · 1855
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. 9 matched · 9 examined · 1 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.8 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 5124 matched · 40 examined · 36 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.4 shown
These figures describe the pass run at 2026-08-28 22:42 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.