The arxiv paper is just a repost of the preliminary paper, which is really more a design outline and rationale -- we may work on a more substantial paper later, we've been busy building the software.
It would be nice if you changed it from "white paper" to something more accurate, like "provisional".
The reason is that "white paper" has a very specific connotation, and this paper is not consistent with the white paper.
Personal opinion: in science the word publication now means "to make accessible" rather "to publish in a conference" (the conference = publication thing is mostly CS) or "to publish in a journal" (like biology and a lot of non-arxiv physics). Pre-pub peer review isn't even required any more. arxiv (and scientists putting preprints on web sites) changed this. Of course, this is personal opinion, based mainly my observations and doesn't necessarily represent the mainstream opinion (yet).
The reason is that "white paper" has a very specific connotation, and this paper is not consistent with the white paper.
Personal opinion: in science the word publication now means "to make accessible" rather "to publish in a conference" (the conference = publication thing is mostly CS) or "to publish in a journal" (like biology and a lot of non-arxiv physics). Pre-pub peer review isn't even required any more. arxiv (and scientists putting preprints on web sites) changed this. Of course, this is personal opinion, based mainly my observations and doesn't necessarily represent the mainstream opinion (yet).