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. 14 shown for “Jacob Bos” — 64 records examined, 38 dropped by the rights gate.
Archives queried 2026-09-05 21:24 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
King Pyrrhus, from "Speculum Romanae Magnificentiae"
Jacob Bos · 1562
Capparis pranensis (Pierre ex Gagnep.) M. Jacobs
Artist not stated in the record · Transcribed d/m/y: 16/9/22
The Farnese Hercules, from "Speculum Romanae Magnificentiae"
Jacob Bos · 1562
Megathyrsus maximus (Jacq.) B.K. Simon & S.W.L. Jacobs
Artist not stated in the record · 19 Jan 1995
Wooden Framework to Support Arches in a Building, from "Speculum Romanae Magnificentiae"
Jacob Bos · 16th century
Emperor Commodus as Hercules, from "Speculum Romanae Magnificentiae"
Jacob Bos · 1550
Emperor Commodus as Hercules
Jacob Bos · 1582
Series of Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 53)
Cornelis Bos · ca. 1545–60
Series of Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 51)
Cornelis Bos · ca. 1545–60
Series fof Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 34)
Cornelis Bos · ca. 1545–60
Series of Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 44)
Cornelis Bos · ca. 1545–60
Series of Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 35)
Cornelis Bos · ca. 1545–60
Series of Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 50)
Cornelis Bos · ca. 1545–60
Series of Cartouches, in: Targhe ed altri ornati di varie e capricciose invenzioni (Cartouches and other ornaments of various and capricious invention, page 36)
Cornelis Bos · ca. 1545–60
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. 61 matched · 24 examined · 0 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. 21832 matched · 40 examined · 38 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.2 shown
These figures describe the pass run at 2026-09-05 21:24 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.