Where a document is deposited on Zenodo, the Zenodo deposit is the authoritative version. Each document is identified here by its concept DOI, which resolves to the current deposit. Citations should use the concept DOI.
Copies held elsewhere — including SSRN, this website and any circulated file — may lag behind the Zenodo deposit. Where the text of another copy diverges from the Zenodo record, the Zenodo record governs. One document departs from this arrangement, and it is stated explicitly below.
The current records are deposited in PDF; all records except HFA-TN-04 also include DOCX. The authoritative deposit is the current Zenodo record resolved through its concept DOI; neither local copies nor separately circulated renderings carry independent authority. This ledger currently covers the three working papers, the Architecture Note, six Technical Notes and HFA-TAX-01.