Should `id` be included in AnonCreds W3C credential, or is it 'valid' to only include it in the W3C credential

[TimoGlastra]

When creating a W3C credential with both an anoncreds and eddsa signature, should we add the id property to the AnonCreds schema and cred def, or can we issue the anoncreds cred without the id property, and only include it in the signature of the eddsa signature?

cc @swcurran @Artemkaaas @gvelez17 @2mau

[swcurran]

We can only use W3C VCs with AnonCreds that adhere to AnonCreds limitations — no complex structures, no arrays. As such, I think this should also align to that. My suggestion:

• to have eddsa holder binding the AnonCreds schema MUST have an id field in it.
• if not — the eddsa signing amounts to a bearer/unbound token.

Is that a reasonable way to go?

I think that adding an id to AnonCreds "under the covers" is problematic.

[TimoGlastra]

Updated in test vectors