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. 16 shown for “Northrup, Joel G.” — 64 records examined, 37 dropped by the rights gate.
Archives queried 2026-09-03 11:45 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Flute
Alfred G. Badger · 1860–65
Patent Model for a Flatbed Cylinder Press
Northrup, Joel G. · ca 1852
Sugar Bowl
Joel Sayre · ca. 1800
Patent Model for a Double-Ended Press
Northrup, Joel G. · ca 1842
Serving Spoon
Joel Sayre · 1770–1800
Patent Model for a Self-Inking Platen Press
Northrup, Joel G. · ca 1853
Teapot
Joel Sayre · ca. 1810
Joel Barlow
Le Barbier, active c. 1801 · c. 1801
Pap Boat
Joel Sayre · 1800–1830
Side chair
Artist not stated in the record · 1690–1710
Sampler
Ann Sayres · 1739
Eruption of Vesuvius, August 8, 1779
Louis Boily · 1779
Joshua and David (from the Heroes Tapestries)
Artist not stated in the record · ca. 1400–1410
King Arthur (from the Heroes Tapestries)
Artist not stated in the record · ca. 1400–1410
Side chair
Artist not stated in the record · 1690–1710
The Crucifixion
Andrea di Cione (Orcagna) · ca. 1365
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. 56 matched · 24 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. 760935 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 2026-09-03 11:45 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.