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. 18 shown for “Terracotta amphoriskos (oil flask)” — 64 records examined, 34 dropped by the rights gate.
Archives queried 2026-08-30 05:28 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Terracotta amphoriskos (oil flask)
Artist not stated in the record · 4th century BCE

Amphoriskos (Two-Handled Flask)
Unidentified (ancient Mediterranean) · 3rd-1st century BC

Terracotta amphoriskos (oil flask)
Artist not stated in the record · 4th century BCE

Oil Flask
Unidentified · 300-399

Terracotta amphoriskos (oil flask)
Artist not stated in the record · 4th century BCE

Alabastron (Oil or Perfume Flask)
Unidentified (ancient Mediterranean) · 6th-5th century BC

Terracotta amphoriskos (oil flask)
Artist not stated in the record · ca. 575–500 BCE

Tile
Artist not stated in the record · late 18th–early 19th century

Terracotta amphoriskos (oil flask)
Artist not stated in the record · ca. 540–500 BCE

Aryballos (Oil Flask)
Unidentified (Roman) · 1st-4th century AD

Terracotta amphoriskos (oil flask)
Artist not stated in the record · ca. 550–525 BCE

Aryballos (Oil Flask)
Unidentified (Roman Empire) · 1st-4th century AD

Terracotta amphoriskos (oil flask)
Artist not stated in the record · 4th century BCE

Terracotta aryballos (oil flask)
Nearchos · ca. 570 BCE

Terracotta lekythos (oil flask)
Amasis Painter · ca. 550–530 BCE

Terracotta lekythos (oil flask)
Achilles Painter · ca. 440 BCE

Amphoriskos (oil flask)
Artist not stated in the record · ca. 340–320 BCE

Terracotta lekythos (oil flask)
Eretria Painter · ca. 420 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. 418 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. 14819 matched · 40 examined · 34 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.6 shown
These figures describe the pass run at 2026-08-30 05:28 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.