Inventory
Each work or document receives a stable identifier. Title, date, technique, dimensions, inscriptions, status, provenance, exhibitions, bibliography and images are recorded only when available.
Verification
Information is checked against photographs, labels, certificates, catalogues, correspondence and identifiable testimony. Contradictory claims remain unpublished until resolved.
Updates and corrections
Records carry an update date. Substantive corrections must be documented internally; new sources may change attributions, dates or relationships between records.