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. 12 shown for “Albert Hoffman, active 1849 - 1854” — 40 records examined, 25 dropped by the rights gate.
Archives queried 2026-09-06 04:01 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Louis Jacques Mande Daguerre
Francis D'Avignon, 29 Oct 1813 - c. 1871 · 1849
Prominent Baptist Ministers
Albert Hoffman, active 1849 - 1854 · c. 1854
Franklin Pierce
Albert Hoffman, active 1849 - 1854 · c. 1853-54
Zachary Taylor and his Cabinet
Francis D'Avignon, 29 Oct 1813 - c. 1871 · 1849
The Rev. Morris Brown of Philadelphia
Albert Newsam, 20 May 1809 - 20 Nov 1864 · 1844
Rufus Choate
Hoffman & Schutz Lithography Co., active 1853 - 1855? · 1854
Charles L. Reason
John Chester Buttre, 10 Jun 1821 - 2 Dec 1893 · 1854
James K. Polk
Albert Newsam, 20 May 1809 - 20 Nov 1864 · 1846
Ficus albert-smithii Standl. in A.C. Sm.
Artist not stated in the record · 8 Feb 1993
Temperance Society Membership Certificate by Thomas Sinclair
Artist not stated in the record · 1841
Quercus hastata Liebm.
Artist not stated in the record · May 1849 to Oct 1849
Conostegia oerstediana O. Berg ex Triana
Artist not stated in the record · Nov 1854
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. The archive returned no records for this term.0 matched - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 132607 matched · 40 examined · 25 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 2026-09-06 04:01 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.