Read my post. I had said clearly that the vassal status of this and other Pamir emirates created a claim which the Chinese might take up at any future date. That claim is not extinguished by their present friendly relationship with Pakistan.
Second, if the Hunza were part of the Kashmir princely state, by the accession of the state to India, Hunza should have become part of India. It was the mutiny engineered by a British Major, Major Brown, that led to these territories acceding to Pakistan.
Third, stop thinking in terms of Pakistani categories; nobody said anything about China having any claim to Baltistan. The position on Baltistan was governed by the Ladakhi-Dogra-Tibetan-Chinese treaty that defined the territorial integrity of Ladakh. The question of a Chinese claim to northern territory is restricted to the Pamir Emirates only, and only to those that acknowledged the suzerainty of Kashgar, prior to their conquest by the British and the Dogra regime, sometimes jointly, sometimes singly.
And keep your grins to yourself. This is not a dick measuring contest.
It is not about footprints; it is about historical claims to suzerainty which remain intact, right through the friendship that is prevalent.
Rather more than that. It is recorded in greater detail than in this meagre Wikipedia article what influence Kashgar had over these Pamir Emirates, and how the last Emir of, Yassin, I think it was, emigrated there when he found himself powerless.
Again, this has nothing to do with a rumoured Chinese military presence, and has nothing to do with claims made. It is about the possibility of claims being made at a future point of time.