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. 19 shown for “Captain R. B. Hill” — 64 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-08 19:39 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.![[Kanpur Memorial], by Captain R. B. Hill](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP147378.jpg&w=3840&q=75)
[Kanpur Memorial]
Captain R. B. Hill · 1850s
Telegram from Cleveland to Captain Benjamin B. Lipsner
Artist not stated in the record · 1918
![[Avenue, Mess and Capt. Hill's House], by Captain R. B. Hill](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP147458.jpg&w=3840&q=75)
[Avenue, Mess and Capt. Hill's House]
Captain R. B. Hill · 1850s
Adenophorus periens L.E. Bishop
Artist not stated in the record · 14 Dec 1988
Prinsep's Ghat, Calcutta
Captain R. B. Hill · 1850s
Gustavia augusta L.
Artist not stated in the record · 13 Feb 1985
Garden in Indigo Districts
Captain R. B. Hill · 1850s
Ocotea nigra Benoist
Artist not stated in the record · 8 Jul 1997 to 16 Jul 1997
Gateway to Government House, Calcutta
Captain R. B. Hill · 1850s
Sesbania exaltata (Raf.) Cory
Artist not stated in the record · 23 Feb 1985
St. John's Church, Calcutta
Captain R. B. Hill · 1850s
Passiflora pedata L.
Artist not stated in the record · 16 Feb 1985
Dum Dum Church
Captain R. B. Hill · 1850s
Kubitzkia macrantha (Kosterm.) van der Werff
Artist not stated in the record · 8 Jul 1997 to 16 Jul 1997
Outram Institute, Calcutta
Captain R. B. Hill · 1850s
Kidderpore Church
Captain R. B. Hill · 1850s
Orphan School, Calcutta
Captain R. B. Hill · 1850s
Dum Dum Church
Captain R. B. Hill · 1850s
Gate Leading into Our House
Captain R. B. Hill · 1850s
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. 430 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. 1480701 matched · 40 examined · 33 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.7 shown
These figures describe the pass run at 2026-09-08 19:39 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.