Dat's pretty cool, but it's not the only game out there. The efforts of git-annex/Datalad [0], Academic Torrents [1], Quilt[2], DVC[3], and Pachyderm [4] are also notable in this space. My hopes are broader in the sense that I just hope that dataset versioning happens in the first place.

[0] https://www.datalad.org/

[1] http://academictorrents.com/

[2] https://quiltdata.com/

[3] https://dvc.org/

[4] http://www.pachyderm.io/