Provenance for sculpture and three-dimensional work

Why 3D work is harder to fingerprint

An image fingerprint commits a certificate to a particular photograph. For flat work that's a strong tie to the object. For a sculpture, a photograph captures only one view under one set of conditions, so the fingerprint is a softer signal — useful supporting evidence, not a strict test of a specific object's identity.

Casts, editions, and foundry marks

Much three-dimensional work exists in editions — bronzes cast from a mould, for instance. As with any edition, each cast should be recorded as its own item with its own number and history. Foundry marks, stamps, and inscriptions are part of a cast's identity and belong in its record.

Where identity comes from

For 3D work, identity rests primarily on the registry and on attestation. Each piece or cast has its own record, its own chain of custody, and — at the strongest tier — facts confirmed by more than one involved party. The record, not a single image, is what distinguishes one legitimate cast from another and separates a genuine piece from a copy.

Documenting a sculpture well

• Photograph multiple angles, plus the base, underside, and any signature or foundry mark.
• Record materials, dimensions, and weight where relevant.
• For casts: edition size, this cast's number, the foundry, and the casting date.
• Capture installation and condition notes, which matter more for dimensional work.

Verifying a three-dimensional work

Verify the certificate and anchor as you would for any work, then lean on the record: confirm the piece is registered as its own item, check any cast numbering and foundry marks against the record, and read the trust tier to see how well its history is corroborated. For valuable pieces, independent expert examination remains important — the registry makes the evidence trustworthy, not the final word on the object.