I noticed that arbitration is no longer visible for people that have not unlocked it(before it was with a locker), clicking it was a good method to know which nodes you needed to complete the origin system(a window with the planet+nodes you haven't completed appeared) to unlock steel path and arbitration.
The npc in the arbiters of hexis only name 6 nodes maximum, so if you needed more than 6 it will say "and x others"(with "x" being a number) like in the image:
So, clicking the arbitration alert was better to know every node you needed.