enhance related and alternate Identifier with W3ID - the Permanent Identifiers for the Web

[ACz-UniBi]

Dear,

the "w3id" - the Permanent Identifiers for the Web - is not respect in the OpenAIRE Guidelines for institutional and thematic repositories.

And some communities, like RO-Crate, would like to use the identifier type "w3id" at the nodes:

• alternateIdentifier - https://openaire-guidelines-for-literature-repository-managers.readthedocs.io/en/v4.0.0/field_alternativeidentifier.html#attribute-alternateidentifiertype-m
• relatedIdentifier - https://openaire-guidelines-for-literature-repository-managers.readthedocs.io/en/v4.0.0/field_relatedidentifier.html#attribute-relatedidentifiertype-m

This issue is to discuss "w3id" and I would like to invite @stain , @rapw3k to the discussion.

[alessiabardi]

Thank you @ACz-UniBi , I also support this suggestion.
I would add the possibility to have w3ids also in the identifier field (https://openaire-guidelines-for-literature-repository-managers.readthedocs.io/en/latest/field_resourceidentifier.html).
Datacite v4.4 already includes w3id among the list of supported PID types.