The explicit Sp(2)-invariant AC shrinker uniqueness conjecture

Let $\Lambda^2_-\mathbb{S}^4$ be the anti-self-dual bundle of the 4-sphere, and let the explicit AC shrinker be the complete $\textup{Sp}(2)$-invariant shrinker described in Example. Explicit Sp(2)-invariant shrinker uniqueness conjecture. The explicit AC shrinker of Example is the unique complete AC $\textup{Sp}(2)$-invariant shrinker. The claim is supported by numerical simulations and is equivalent in substance to the paper's uniqueness-up-to-scale formulation; it remains open.