The fibered-knot coefficient conjecture for theta

Let $K$ be a fibered knot, and let $d$ be the degree of its Alexander polynomial $\Delta(K)$, meaning the highest power of $T$. Consider the coefficient of $T_2^{2d}$ in $\theta(K)$, which is a polynomial in $T_1$.

Fibered-knot coefficient conjecture. This coefficient is an integer multiple of

$$T_1^d\left.\Delta(K)\right|_{T\to T_1}.$$

The claim would provide a fast-to-compute fiberedness criterion and can be stronger than the Alexander condition. The authors state that they have no theoretical support for it, so it remains open.