The OAIS reference model (ISO 14721:2012) has been widely accepted as a theoretical foundation for digital archives, but there has been relatively little discussion of internal elements of an OAIS-compliant repository in the context of traditional archival theory and practice. Based on the experience of the archives of the National Gallery of Art, this paper presents practical concepts for creating a small digital archival repository within the OAIS framework built on recognized archival principles of provenance, group level management, and hierarchical organization.