Not sure what the current preferred term is, but drawing on @sei-vsarvepalli's comment on #119:

JSON format allows for UTF-8 representation of each of "keys" and "values" in both the Provision and Computed schema. So, what should happen if language is say Japanese in UTF-8, do they pick equivalent English letters? Is SSVC vector only is limited to POSIX locale - basically US-ASCII chars only? Maybe a short note of this would be good to clarify how short notation handles languages.

I think the task is generally to address i18n issues in the JSON and vector notations, but it's likely that this may need to be broken up into subtasks. This is probably a post-SSVCv2 item.