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. 8 shown for “Photograph of NC-4 Flying Boat” — 40 records examined, 32 dropped by the rights gate.
Archives queried 2026-09-01 01:07 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.The Metropolitan Museum of Art: HTTP 403 from collectionapi.metmuseum.org. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Photograph of NC-4 Flying Boat
Artist not stated in the record · May 1919

Rain at Dordrecht
George Charles Aid, born Quincy, IL 1872-died Tryon, NC 1938 · n.d.

Flying Dutchman
Albert Pinkham Ryder, born New Bedford, MA 1847-died New York City 1917 · completed by 1887

Pont Royal
George Charles Aid, born Quincy, IL 1872-died Tryon, NC 1938 · n.d.

The Flying Dutchman
Elbridge Kingsley, born Carthage, OH 1842-died New York City 1918 · published 1887

Model, Static, Curtiss Twin Tractor
Artist not stated in the record · 1961
Model, Static, Curtiss HS-2L
Artist not stated in the record · 1962

Picture postcard of a North Carolina Convict Camp
Artist not stated in the record · ca. 1910
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. HTTP 403 from collectionapi.metmuseum.org. No records from this archive are shown for this query.Unavailable - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 311 matched · 40 examined · 32 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.8 shown
These figures describe the pass run at 2026-09-01 01:07 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.