Expand metadata model (summaryStatistics?) and provide more metadata for datacite

[yarikoptic]

@satra pointed in slack

https://metadata-health-ui.vercel.app/providers/dartlib?view=summary&client=dartlib.dandi (
@Yaroslav (AKA Yarik)
and
@dorota

• as you rethink the doi generation, this report may be helpful in thinking about updating the datacite metadata for recommended and optional mapping).

Currently Mandatory: 100%, Recommended: 48%, Optional: 29%

Also related:

• Check/export new instruments metadata to datacite #254

[satra]

RRID has been introduced to relatedIdentifierType in datacite schema 4.6

[yarikoptic]

interesting! related brief issue was datacite/schema#150