It has the date and time with seconds resolution in there. Not just the built number.
On April 27, 2019 9:57:59 PM GMT+02:00, Theo de Raadt <dera...@openbsd.org> wrote: >> As Florian suggested I compared kern.version to what from both bsd >and bsd.mp. > >Do not do that. > >kern.version in snapshots and releases are completely arbitrary, based >on >whether I delete an obj tree, then the version numbers begin anew. >This >heuristic will false-positive.