There are a couple of things in the election identifiers that I'd highlight -
NIST has had a bunch of projects in election data interchange over the years:
some of these data file formats have places for contest identifiers, and while NIST is not a place where you can go to find "here are the elections that were held in Wisconsin in 2024: the spring nonpartisan primary, the spring nonpartisan general and presidential primary, the special election for Assembly district 48 in June, the August partisan primary, the november general election and special election for county executive", all of the results of those elections could be published using NIST formats, and it would be good if any election identifier that OpenElections uses could be taken directly out of a file that contains data using the NIST formats.
The other format is the OCD-ID for elections identifier from Open Civic Data, which apparently is now an "accepted standard" for them:
Now, personally I think most OCD-ID standards that "can be minted by anyone" are deeply flawed as since they're literally just UUIDs with a type stuck on the front of it, and are of absolutely no help for interoperability because they have no indicator of the issuer, so you can't look them up (literally, if someone gives you an ID of ocd-election/ebaff054-05df-11e3-a53b-f0def1bd7298 you have no idea who issued it and what system it might be valid in - is this OpenElections, is this VEST, is this the California Sec of State? Who knows!) That said, it's probably better to adopt something that maybe others are using rather than inventing something new that it's guaranteed no one else is using right now.
(To not sound too grumpy, I think the OCD-IDs for divisions and are awesome!)
-Erik