Wondering if it is possible/planned for metadata to contain linking ISSNs. I am guessing the challenge here might be that publishers don’t generally provide these and that it would mean providing modified or updated data?
The primary use case is tracking journals through time accurately with a PID. ISSNs are insufficient because they are inconsistently applied (print, electronic etc) across the metadata corpus. Mostly people build aggregations and mappings to solve this but it would be good to move that upstream to an authority controlled position at some point.