What defines a "Proven" breeder

[Stewart_Reptiles]

A proven breeder female is a female that was bred and successfully laid a clutch of eggs.

A proven male is a male that sired a clutch.

In the event of a Het female it is also a female that has proven out by producing a visual offspring, same goes for proven het male, he sired a clutch that as produced a visual.

What I really want to know is when looking for a proven breeder to buy is there anything about the snake that suggests it has successfully bred in the past or are you completely at the mercy of the previous owners say so?

That would seem like a good proof to me , so ask the breeder for a picture like this for proven females. For the rest well you need to by from a trusted breeder.