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. 17 shown for “Terracotta kyathos (single-handled cup)” — 64 records examined, 35 dropped by the rights gate.
Archives queried 2026-08-27 15:56 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Terracotta kyathos (single-handled cup)
Artist not stated in the record · 7th century BCE

Two-Handled Cup
John Samuel Hunt, English, 1785 – 1865 · 1855

Terracotta kyathos (single-handled cup)
Artist not stated in the record · 7th century BCE

Child's Cup
Gorham Manufacturing Company · 1882

Terracotta stemmed kyathos (single-handled cup)
Artist not stated in the record · ca. 575–550 BCE

Noh robe
Artist not stated in the record · ca. 1800

Terracotta stemmed kyathos (single-handled cup)
Artist not stated in the record · ca. 550–525 BCE

Architectural panels from the Western Methodist Book Concern Building, Chicago, Illinois (Harry B. Wheelock, architect)
Northwestern Terra Cotta, USA · ca. 1899

Terracotta stemmed kyathos (single-handled cup)
Artist not stated in the record · 6th century BCE

Western Methodist Book Concern Building, Chicago, Illinois (Harry Bergen Wheelock, architect)
Northwestern Terra Cotta, USA · ca. 1899

Bronze kyathos (single-handled cup)
Artist not stated in the record · 6th century BCE

Bronze kyathos (single-handled jug)
Artist not stated in the record · ca. 450–400 BCE

Terracotta kyathos (ladle)
Artist not stated in the record · ca. 650 BCE

Terracotta kyathos (cup-shaped ladle)
Artist not stated in the record · ca. 530–500 BCE

Terracotta kyathos (cup-shaped ladle)
Artist not stated in the record · ca. 520–510 BCE

Terracotta kyathos (cup-shaped ladle)
Artist not stated in the record · ca. 520–510 BCE

Bronze kyathos (ladle)
Artist not stated in the record · 450–400 BCE
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. 153 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. 410 matched · 40 examined · 35 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.5 shown
These figures describe the pass run at 2026-08-27 15:56 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.