Unique limit tangent cone conjecture for minimal surfaces

Let $M$ be a properly immersed minimal surface in ${\mathbb R}^3$ with quadratic area growth, meaning that its area growth constant $A(M)$ is finite. A limit tangent cone at infinity is a minimal cone obtained as a subsequential limit of homothetic shrinkings of $M$. Unique limit tangent cone conjecture. The surface $M$ has a unique limit tangent cone at infinity. This conjecture concerns the asymptotic geometry of properly immersed minimal surfaces with quadratic area growth; the supplied source does not state whether it has been resolved.