The maps have shown this to be the summit since 1982, and I visited it as such in 1983. It was not until 1997 that the SMC got to update the tables.
On my last visit,1995, there was no cairn, nor path near this top, the herd just ignored it in their rush to get to the east. I expect that the east top sees fewer visitors. No photo, it was not the best of weather.