investigate how many fatcat releases match to SIM:
- dump archive.org SIM collection-level metadata
- dump archive.org issue item-level metadata
- releases with: in_sim, volume, issue, page, year (month?)
    => 22m   in_ia_sim
    =>  1.1m in_ia_sim preservation:none
    => 20m   in_ia_sim volume
    => 20m   in_ia_sim volume year
    => 19m   in_ia_sim volume pages
    =>  5m   in_ia_sim volume year date
    =>  7m   in_ia_sim volume issue
    =>  7m   in_ia_sim volume issue pages
    =>  6m   in_ia_sim volume issue pages first_page
    =>  5.3m in_ia_sim volume issue pages first_page in_web:false
    =>  0.7m in_ia_sim volume issue pages first_page preservation:none
    =>  2.5m in_ia_sim volume issue pages first_page date
- how many (any?) SIM journals with no fatcat container
- how many SIM journals/issues/years with ~no fatcat releases

at least some (release_jpruczlec5gsjpbc2cbvwedsdy) have updated crossref
metadata with issue numbers