Parts I and II of Hohfeld's articles are collected below (the 2nd (1920) edition is digitized). Since he continued to be dead for all editions, this is not a major issue.
Hohfeld, W. N. (1920). *Fundamental legal conceptions as applied in judicial reasoning: and other legal essays*. Yale University Press. Available at https://books.google.com/books?id=GK0zAQAAMAAJ This field is, to quote Brown, "esoteric literature", but Hohfeld is usually a recommended entry point. There are some owlifications, but they haven't seen much application. There are arguments against Legal Positivism in the broad sense, but those seem like they can be avoided in the CRM context. The primary concepts needed for CRM would seem to be those from the areas of Personal Property, together with a small subset of those involved in contracts, that correspond to the "Facts" that would be input to a Positivist's "Law". It is important to be able distinguish between e.g. the loan of a painting for a definite or indefinite period; the gift of a painting; the transfer of a painting for restoration; or the purchase of a painting for value. It may or may not be important to know when a painting has been on exhibit, and how that exhibit was publicized. Provenance is important, but that kind of applies to other parts of the CRM :)
