What metabolites are found in which species? Nanopublications from Wikidata

In December I reported about Groovy code to create nanopublications. This has been running for some time now, extracting nanopubs that assert that some metabolite is found in some species. I send the resulting nanopubs to Tobias Kuhn, to populate his Growing Resource of Provenance-Centric Scientific Linked Data (doi:10.1109/eScience.2018.00024, PDF).

Each data set comes with an index pointing to the individual nanopubs, and that looks like this:

I wonder what options I have to to archive the full set up nanopublications on Figshare or Zenodo, and see that DOI show up here...