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 “John Adams Whipple” — 64 records examined, 22 dropped by the rights gate.
Archives queried 2026-08-27 18:57 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.![[Two Elderly Men Conversing], by John Adams Whipple](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP332502.jpg&w=3840&q=75)
[Two Elderly Men Conversing]
John Adams Whipple · ca. 1850
John Adams Whipple
Francis D'Avignon, 29 Oct 1813 - c. 1871 · 1851
![[Hypnotism], by John Adams Whipple](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP332522.jpg&w=3840&q=75)
[Hypnotism]
John Adams Whipple · ca. 1845
Harvard Observatory Team, Photographing Eclipse
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · 1869
The Moon
John Adams Whipple · 1857–60
John A. Whipple
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · c. 1860
The Moon
John Adams Whipple · 1857–60
Nathaniel Hawthorne
Artist not stated in the record · c. 1855
The Moon
John Adams Whipple · 1857–60
Alvin Adams
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · c. 1860 (after c. 1855 daguerreotype)
The Moon
John Adams Whipple · 1857–60
George Washington
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · November 15, 1847
![[Double Plate: Two Men with Sideburns], by John Adams Whipple](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP700118.jpg&w=3840&q=75)
[Double Plate: Two Men with Sideburns]
John Adams Whipple · 1850s
Henry Larcom Abbot
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · c. 1857
John Quincy Adams Ward
Henry Augustus Loop · 1863
Horatio Greenough
Artist not stated in the record · 1852
Abigail Smith Adams
James Sharples · ca.1796
Jeffries Wyman
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · 1868
The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25
Asa Gray
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · 1861
Mrs. John Crosby Brown (Mary Elizabeth Adams, 1842–1918)
Anders Zorn · ca. 1900
Jared Sparks
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · 1863
William Tilden Blodgett
John Quincy Adams Ward · 1865
Jared Sparks
John Adams Whipple, 10 Sep 1822 - 10 Apr 1891 · 1863
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. 866 matched · 24 examined · 9 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. 273752 matched · 40 examined · 13 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 2026-08-27 18:57 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.