jgmac1106mapkyca is a DID ir ORCID a handle? maybe it is p-nickname, nothing consumes them yet so what you pick won’t really matter, I would say p-note or -p-nickname for ORCID
mapkycaThough I think it is probably good to have a canonical PID identifier for an identity type. I guess a lot of times this could be a URL though - DOIs for example resolve to a URL, but that relies on doi.org being up, and around forever