Gauge-equivalnt fields

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Suppose we have

$$V_1 = 0, \ A_1 = \frac{B}{2}(-y,x,0)$$

and

$$V_2 = 0,\ A_2=B(0,x,0)$$

I need to show that the potentials are equivalent and they represent the same magnetic and electric fields and find the gauge transformation that relates them.

So from what i know if we want to use gauge transformation:

$$v_2=v_1+\beta$$ $$A_2=A_1+\alpha$$

obviously then $\alpha = \nabla \lambda=\frac{B}{2}(y,0,0)$

But this whole thing just seems to easy. I also tried to compute the curl of the B field and integrate to get individual components but got something that didn't make any sense to. me. What am i doing wrong?