[open-science] DOIs, datahub, figshare

[Tom Roche]

Just wanted to ensure I correctly understand how DOIs are handled by
figshare and the DataHub. IIUC,

1 figshare generates DOIs for uploaded datasets, per

http://figshare.com/blog/All%20research%20outputs%20should%20be%20citable/32

2 datahub allows appending external DOIs to a dataset's metadata, per

http://blog.okfn.org/2012/06/19/ckan-science/

  but does not create DOIs for the user.

Is that correct?