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. 14 shown for “Gioan Battista Nocchi” — 42 records examined, 9 dropped by the rights gate.
Archives queried 2026-08-26 23:23 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Saint John the Baptist
Gioan Battista Nocchi · ca. 1843
The Massacre of the Innocents
Artist not stated in the record · ca. 1780-1800
The Denial of Saint Peter
Caravaggio (Michelangelo Merisi) · 1610
Carceri Series, Title Page
Giovanni Battista Piranesi, Italian, 1720–1778 · 1745
Title page, "Il Campo Marzio dell'Antica Roma," from part 20 of "The Complete Works of Giovanni Battista Piranesi"
Giovanni Battista Piranesi, Italian, 1720–1778 · 1800
Frontispiece: Della Magnificenza Ed. Architettura Dei Romani
Giovanni Battista Piranesi, Italian, 1720–1778 · 1761
Portrait of Giovanni Battista Casti (1721-1803)
Artist not stated in the record · ca. 1830
A Stucco Angel from the Nave Vault, Church of the Gesu, Rome," from the album "Drawings after Ornament and Architecture"
Jean-Robert Ango, French, active in Rome 1759 –1770, d. 1773 · ca. 1759–70
The Catologue of the artist's work (Table of Contents of the Vedute di Roma)
Giovanni Battista Piranesi, Italian, 1720–1778 · ca. 1779
Washbasin, page from Il Campo Marzio dell'Antica Roma
Giovanni Battista Piranesi, Italian, 1720–1778 · 1762
Diverse Trophies
Artist not stated in the record · 17th century
Girl with Globe
Unidentified
Scenographia Campi Martii, page from Il Campo Marzio dell'Antica Roma
Giovanni Battista Piranesi, Italian, 1720–1778 · 1762
Saint Paulinus Preaching
Artist not stated in the record · 1750–1780
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. 2 matched · 2 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.2 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 322 matched · 40 examined · 9 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 2026-08-26 23:23 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.