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 “Grand Canal” — 64 records examined, 13 dropped by the rights gate.
Archives queried 2026-09-07 09:32 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 Grand Canal above the Rialto
Francesco Guardi · late 1760s
Grand Canal
Artist not stated in the record · ca. 1830
Piazza San Marco
Canaletto (Giovanni Antonio Canal) · late 1720s
View of Venice from the Grand Canal
Thomas Moran, American, b. Britain, 1837–1926 · 1888
The Grand Canal, Venice, Looking Southeast, with the Campo della Carità to the Right
Canaletto (Giovanni Antonio Canal) · 1730s
Grand Canal
Artist not stated in the record · ca. 1837
The Grand Canal, Venice, Looking South toward the Rialto Bridge
Canaletto (Giovanni Antonio Canal) · 1730s
Scene on the Grand Canal, Venice
Unidentified (Italian) · 18th century
Warwick Castle: The East Front
Canaletto (Giovanni Antonio Canal) · 1752
The Grand Canal, Venice
Pietro Gabrini, Italian, born Rome, Italy 1856-died Rome, Italy 1926 · n.d.
The Qianlong Emperor's Southern Inspection Tour, Scroll Six: Entering Suzhou along the Grand Canal
Xu Yang · dated 1770
Peep-show, Vue du Grand Canal, du Palais Balbori, du Pont Realto, et de la Fête des Condoles a Venise
Artist not stated in the record · ca. 1750
Campo Santa Maria Zobenigo, Venice
Canaletto (Giovanni Antonio Canal) · 1730s
Grand Canal
Artist not stated in the record · ca. 1840
Syout, Pont Sur le Grand Canal
Félix Teynard · 1851–52, printed 1853–54
LE BASSIN D’APOLLON
Nicolas Langlois, French, 1640 - 1703 · 1670–1703
Campo Sant'Angelo, Venice
Canaletto (Giovanni Antonio Canal) · 1730s
Stachys palustris L.
Artist not stated in the record · 31 Jul 1949
Warwick Castle
Canaletto (Giovanni Antonio Canal) · 1748
A View of Venice
Thomas Moran, born Bolton, England 1837-died Santa Barbara, CA 1926 · 1891
Map of the Grand Canal from Beijing to the Yangzi River
Unidentified artist · late 18th or early 19th century
View of Venice, Italy
Robert Frederick Blum, American, 1857–1903 · 1880
The Grand Canal from Ca'Moro-Lin and Ca'Foscari to the Carità
Bernardo Bellotto · ca. 1736–37
Thelypteris palustris (Salisb.) Schott
Artist not stated in the record · 12 Aug 1954
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. 93 matched · 24 examined · 3 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. 124928 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 2026-09-07 09:32 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.