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 “Benjamin Banks” — 54 records examined, 25 dropped by the rights gate.
Archives queried 2026-09-04 21:43 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Viola
Benjamin Banks · 1791

1c buff Franklin plate proof pair
National Bank Note Company · 1869

Coffeepot
Benjamin Brewood II · 1762–63

1c buff Franklin without grill single
National Bank Note Company · 1880

Teakettle
Benjamin Brewood II · 1762–63

1c ultramarine Franklin plate proof single
Continental Bank Note Company · 1873

The Banks of the Oise
Charles-François Daubigny · 1863

1c ultramarine Franklin single
National Bank Note Company · 1870

Tommaso di Folco Portinari (1428–1501); Maria Portinari (Maria Maddalena Baroncelli, born 1456)
Hans Memling · ca. 1470

1c Franklin single
National Bank Note Company · August 17, 1861

Portrait of an Old Man
Hans Memling · ca. 1475

1c Franklin re-issue single
National Bank Note Company · 1875

$1000 Bill for The Greenwich Bank, The City of New York
Asher Brown Durand · ca. 1828

30c Franklin re-issue single
National Bank Note Company · 1875

Ulrich Fugger the Younger (1490–1525)
Hans Maler · 1525

1c Franklin E. Grill single
National Bank Note Company · 1867

Writing Box with Yellow Rose Flowers and Rushing Stream
Artist not stated in the record · 18th century

1c ultramarine Franklin single
Continental Bank Note Company · August 22, 1873

Self-Portrait
George Chinnery · 1825–28

1c buff Franklin plate proof single
National Bank Note Company · 1869

Model for a Proposed Monument to Commemorate the Invention of the Balloon
Clodion (Claude Michel) · ca. 1784

1c Franklin plate proof single
National Bank Note Company · 1861

Viola
Robert Horne · 1757

1c Franklin specimen single
National Bank Note Company · 1861
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. 14 matched · 14 examined · 1 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. 149034 matched · 40 examined · 24 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 2026-09-04 21:43 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.