Confirm the object before tracing owners

Record maker attribution, title variants, dimensions, medium, inscriptions, labels, inventory numbers, and images. Treat close matches as candidates until several independent features align. A shared title or subject is never enough to establish identity.

Record maker attribution, title variants, dimensions, medium, inscriptions, labels, inventory numbers, and images. Treat close matches as candidates until several independent features align. A shared title or subject is never enough to establish identity. Use a source ledger and claim identifiers so another researcher can reproduce the decision, challenge an assumption, and distinguish evidence from interpretation.

Build one event at a time

Represent each alleged transfer, custody change, exhibition, sale, restitution, or publication as a dated event. Name the source for the date, parties, place, and object identity separately; a source may support only part of an event.

Represent each alleged transfer, custody change, exhibition, sale, restitution, or publication as a dated event. Name the source for the date, parties, place, and object identity separately; a source may support only part of an event. Use a source ledger and claim identifiers so another researcher can reproduce the decision, challenge an assumption, and distinguish evidence from interpretation.

Test every ownership statement

Ask whether the source witnessed the event, copied another source, or merely summarized a tradition. Prefer contemporary invoices, correspondence, inventories, catalogues, shipping records, photographs, and official files, while preserving their limitations.

Ask whether the source witnessed the event, copied another source, or merely summarized a tradition. Prefer contemporary invoices, correspondence, inventories, catalogues, shipping records, photographs, and official files, while preserving their limitations. Use a source ledger and claim identifiers so another researcher can reproduce the decision, challenge an assumption, and distinguish evidence from interpretation.

Record the boundary of the evidence

End the research record by separating documented facts, supported interpretations, unresolved questions, and disconfirmed leads. A gap is not proof of wrongdoing, and a repeated statement is not independent corroboration when every repetition traces back to the same source.

Retain the source URL or call number, access date, quoted passage, page or image reference, and a file hash when a stable local copy is permitted. This makes the conclusion reproducible and makes later correction possible without rewriting the history of the research.