In order to have (or try to make) a pathway URI that mean something or point to a useful (preferably original, authors') diagram, the original data source should provide standard resolvable identifiers, which probably wasn't the case with INOH (you can find and check the
original data files that we integrated into Pathway Commons db). For example, Reactome does have stable pathway IDs, and so we can have e.g. "
http://identifiers.org/reactome/R-HSA-9006335". Also you can check the XRefs of a pathway, which may contain some useful IDs. (Pathway Commons project and data are not actively maintained anymore, sorry; and many of the pathway data sources we integrated were also old/unmaintained since long ago.)
Here are a couple of related app links, e.g.,
https://apps.pathwaycommons.org/search?q=EPO%20signaling%20pathway&type=Pathway - which leads to -