Provenance means evidence that the item is genuine.
For instance,if you were selling a signed copy of Bat,a photo of Meat signing it would bring provenance that the album is original.
In this instance,a guest list of the event listing Meat as an invited guest would lend provenance to the authenticity of the item.
Provenance is a grey area sometimes.It can be just as difficult to prove the provenace of an item as to prove the item itself
.