Two 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 “Taddeo Gaddi” — 57 records examined, 6 dropped by the rights gate.
Archives queried 2026-08-27 01:28 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Madonna and Child Enthroned with Saints
Taddeo Gaddi · ca. 1340, updated ca. 1480
Lithothrix aspergillum
Artist not stated in the record · 21 Jan 1977

Saint Julian
Taddeo Gaddi · 1340s
Dictyopteris undulata
Artist not stated in the record · 21 Jan 1977

Saint Anthony of Padua
Maso di Banco · ca. 1340
Sargassum muticum
Artist not stated in the record · 21 Jan 1977

Six Angels
Jacopo di Cione · ca. 1365
Phyllospadix torreyi S. Watson
Artist not stated in the record · Transcribed d/m/y: 21/1/77

The Adoration of the Magi
Giotto di Bondone · possibly ca. 1320
Codium fragile (Suringar) P. Hariot
Artist not stated in the record · 21 Jan 1977

The Trinity
Agnolo Gaddi · ca. 1390–96
Corallina vancouveriensis Yendo
Artist not stated in the record · 21 Jan 1977

Saint Reparata Tortured with Red-Hot Irons
Bernardo Daddi
Corallina officinalis var. chilensis
Artist not stated in the record · 21 Jan 1977

The Coronation of the Virgin, and Saints
Giovanni di Tano Fei · 1394

Design for a Plate or a Tondo: Soldiers supplicant before a Roman General
Taddeo Zuccaro, Italian, 1529 - 1566 · mid-16th century

The Crucifixion
Andrea di Cione (Orcagna) · ca. 1365

Hexastylis harperi (Gaddy) B.R. Keener & L.J. Davenp.
Artist not stated in the record · 16 Apr 1936

Totila before Saint Benedict
Benozzo Gozzoli (Benozzo di Lese di Sandro)

Hexastylis harperi (Gaddy) B.R. Keener & L.J. Davenp.
Artist not stated in the record · 10 Jul 1910

Saint Peter and Simon Magus
Benozzo Gozzoli (Benozzo di Lese di Sandro)

Hexastylis harperi (Gaddy) B.R. Keener & L.J. Davenp.
Artist not stated in the record · 15 Jun 1936

The Conversion of Saint Paul
Benozzo Gozzoli (Benozzo di Lese di Sandro)

Hexastylis harperi (Gaddy) B.R. Keener & L.J. Davenp.
Artist not stated in the record · -- -- 189-
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. 17 matched · 17 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. 192 matched · 40 examined · 6 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 01:28 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.