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. 22 shown for “Seal in the form of a hedgehog” — 64 records examined, 30 dropped by the rights gate.
Archives queried 2026-08-27 08:39 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Seal in the form of a hedgehog
Artist not stated in the record · ca. 1981–1550 B.C.
![Proofs for four plates of "Alfabeto in Sogno" [Dream Alphabet]: Letter I, by Giuseppe Maria Mitelli, 1634 – 1718](/_next/image?url=https%3A%2F%2Fids.si.edu%2Fids%2Fdownload%3Fid%3DCHSDM-1C659AF56D752-000001.jpg&w=3840&q=75)
Proofs for four plates of "Alfabeto in Sogno" [Dream Alphabet]: Letter I
Giuseppe Maria Mitelli, 1634 – 1718 · 1683
Hedgehog
Artist not stated in the record · ca. 1550–1450 BCE
Fragments
Artist not stated in the record · 14th century
Hedgehog
Artist not stated in the record · probably 664–30 BCE
Seal
Artist not stated in the record · ca. 1840
Helmet with Aventail
Artist not stated in the record · late 15th–16th century
Trompe-l'Oeil Étui and Seal
Artist not stated in the record · mid- 18th– late 18th century
Finial in the Form of a Parrot
Artist not stated in the record · 17th–18th century
Blank certificate of pastor's appointment for the A.M.E. Church
Artist not stated in the record · 20th century
Hedgehog Stamp Seal
Artist not stated in the record · ca. 1479–1425 BCE
Seal
Artist not stated in the record · ca. 1720
Seal
Jacob Boelen · ca. 1704
Grand Army of the Republic medal owned by Marquis Peterson
Artist not stated in the record · 1866-1896
Unique Forms of Continuity in Space
Umberto Boccioni · 1913, cast 1950
Seal
Artist not stated in the record · 1830–50
Bronze mirror with a support in the form of a draped woman
Artist not stated in the record · mid-5th century BCE
Hedgehog Cactus (Coryphantha arizonica)
Mary Vaux Walcott, born Philadelphia, PA 1860-died St. Andrews, New Brunswick, Canada 1940 · 1933
Seal
Artist not stated in the record · 14th century
Organization of Afro-American Unity Inc. Aims and Objectives
Organization of Afro-American Unity, American, 1964 - 1965 · 1964
Seal
Artist not stated in the record · 12th century
Seal
Artist not stated in the record · 9th–12th century
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. 20859 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. 7483534 matched · 40 examined · 30 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.10 shown
These figures describe the pass run at 2026-08-27 08:39 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.