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. 24 shown for “Biography of John C. Calhoun” — 64 records examined, 11 dropped by the rights gate.
Archives queried 2026-09-03 15:34 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25
Biography of John C. Calhoun
Artist not stated in the record · published 1850
The Annunciation to Zacharias; (verso) The Angel of the Annunciation
Giovanni di Paolo (Giovanni di Paolo di Grazia) · ca. 1455–60
John C. Calhoun
E. B. & E. C. Kellogg Lithography Company, active c. 1842 - 1867 · 1844
The Penitence of Saint Jerome
Joachim Patinir · ca. 1515
John C. Calhoun
E. B. & E. C. Kellogg Lithography Company, active c. 1842 - 1867 · 1844
The Vision of Saint John
El Greco (Domenikos Theotokopoulos) · ca. 1608–14
John C. Calhoun
Unidentified Artist · c. 1855 (after c. 1845 daguerreotype)
John C. Calhoun
Savinien Edme Dubourjal · 1846
John C. Calhoun
Francis D'Avignon, 29 Oct 1813 - c. 1871 · 1850
Christ and the Two Thieves Crucified
Michelangelo Buonarroti · ca. 1560–70
John C. Calhoun
James Barton Longacre, 11 Aug 1794 - 1 Jan 1869 · c. 1834
The Gallery of Illustrious Americans, Containing the Portraits and Biographical Sketches of Twenty-four of the Most Eminent Citizens of the American Republic Since the Death of Washington
Brady, D'Avignon and Company · 1850
John C. Calhoun
Peter Kramer, 1823 - 1907 · c. 1850
Virgil's Tomb by Moonlight, with Silius Italicus Declaiming
Joseph Wright (Wright of Derby) · 1779
John C. Calhoun
James Barton Longacre, 11 Aug 1794 - 1 Jan 1869 · c. 1827
The Martyrdom of Saint John the Baptist
Bernard van Orley · ca. 1514–15
John C. Calhoun
Charles G. Crehen, 1829 - c. 1900 · 1850
Madonna and Child Enthroned with Two Angels and Saints John the Baptist and James the Great and (above) the Annunciatory Angel (left wing); Crucifixion with the Virgin, Saint Mary Magdalen and Saint John the Evangelist and (above) the Virgin Annunciate (right wing)
Paolo di Giovanni Fei · ca. 1400–1410
John C. Calhoun
Artist not stated in the record · c. 1823
Mrs. Richard Brinsley Sheridan (Hester Jane Ogle, 1775/76–1817) and Her Son (Charles Brinsley Sheridan, 1796–1843)
John Hoppner
John C. Calhoun
George Peter Alexander Healy, 15 Jul 1813 - 24 Jun 1894 · c. 1845
The Denial of Saint Peter
Caravaggio (Michelangelo Merisi) · 1610
John C. Calhoun
Miner Kilbourne Kellogg, 1814 - 1889 · 1848
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. 271 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. 3611771 matched · 40 examined · 10 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 2026-09-03 15:34 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.