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. 16 shown for “EL ACID H” — 64 records examined, 41 dropped by the rights gate.
Archives queried 2026-09-05 01:24 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
View of Toledo
El Greco (Domenikos Theotokopoulos) · ca. 1599–1600
EL ACID H
Artist not stated in the record · 17th-18th century
Cardinal Fernando Niño de Guevara (1541–1609)
El Greco (Domenikos Theotokopoulos) · ca. 1600
Xanthoparmelia nigroweberi T.H. Nash & Elix
Artist not stated in the record · 20 Feb 1987
The Adoration of the Shepherds
El Greco (Domenikos Theotokopoulos) · ca. 1605–10
Sulphuric Acid Plant (Model)
Artist not stated in the record · 1873
The Vision of Saint John
El Greco (Domenikos Theotokopoulos) · ca. 1608–14
Digitaria serotina (Walter) Michx.
Artist not stated in the record · 1 Oct 1950
Christ Healing the Blind
El Greco (Domenikos Theotokopoulos) · ca. 1570
Stela of the royal scribe Amunnakht praising the divine barque of Amun-Re, Lord of the Thrones of the Two Lands
Artist not stated in the record · ca. 1197–1080 BCE
Portrait of an Old Man
El Greco (Domenikos Theotokopoulos) · ca. 1595–1600
Tell el-Yahudiya-ware juglet
Artist not stated in the record · ca. 1640–1550 B.C.
Tell el-Yahudiya juglet
Artist not stated in the record · ca. 1802–1640 B.C.
Tell el-Yahudiya-ware jar
Artist not stated in the record · ca. 1750–1600 B.C.
Tell el-Yahudiya-ware jar
Artist not stated in the record · ca. 1750–1600 B.C.
Tell el-Yahudiya-ware fish vessel
Artist not stated in the record · ca. 1640–1550 B.C.
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. 3527 matched · 24 examined · 5 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. 1040185 matched · 40 examined · 36 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.4 shown
These figures describe the pass run at 2026-09-05 01:24 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.