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. 20 shown for “Bartolo di Fredi” — 64 records examined, 32 dropped by the rights gate.
Archives queried 2026-08-26 20:21 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 Adoration of the Magi
Bartolo di Fredi · ca. 1390
Gossypium sp.
Artist not stated in the record · 17 Jan 2012
The Adoration of the Shepherds
Bartolo di Fredi · 1374
Barleria micans Nees
Artist not stated in the record · 13 Nov 1988
The Coronation of the Virgin
Niccolò di Buonaccorso · ca. 1380
Salvia cinnabarina ? M. Martens & Galeotti
Artist not stated in the record · 22 May 1982
The Creation of the World and the Expulsion from Paradise
Giovanni di Paolo (Giovanni di Paolo di Grazia) · 1445
Lopezia clavata Brandegee
Artist not stated in the record · 8 Jan 1959
Madonna and Child
Paolo di Giovanni Fei · 1370s
Gossypium gossypioides (Ulbr.) Standl.
Artist not stated in the record · 23 Nov 2011
Christ and the Twelve Apostles
Taddeo di Bartolo · ca. 1400
Gossypium gossypioides (Ulbr.) Standl.
Artist not stated in the record · 4 Jan 2012
Madonna and Child with Saints Jerome and Mary Magdalen
Matteo di Giovanni di Bartolo
Gossypium gossypioides (Ulbr.) Standl.
Artist not stated in the record · 29 Nov 2011
Madonna and Child with Saints Francis and Catherine of Siena
Matteo di Giovanni di Bartolo · about 1476–80
Gossypium gossypioides (Ulbr.) Standl.
Artist not stated in the record · 10 Nov 2010
Madonna and Child Enthroned with Saint John the Evangelist, Saint Peter, Saint Agnes, Saint Catherine of Alexandria, Saint Lucy, an Unidentified Female Saint, Saint Paul, and Saint John the Baptist, with Eve and the Serpent; the Annunciation
Paolo di Giovanni Fei · 1390s
Reliquary Bust of Saint Juliana
Giovanni di Bartolo · ca. 1376
The Journey of the Magi
Sassetta (Stefano di Giovanni) · ca. 1433–35
The Intercession of Christ and the Virgin
Lorenzo Monaco (Piero di Giovanni) · before 1402
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. 44 matched · 24 examined · 0 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. 18017 matched · 40 examined · 32 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.8 shown
These figures describe the pass run at 2026-08-26 20:21 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.