We have been told in the past that the printers do not keep records on replacements used. I do believe, though, that the BoC will document the notes they use as replacements and eventually that info will find its's way to us.
I am all over this The stickers on the 4-brick bags are the key. They go upwards in number as printing moves on. Meaning, there is a recorded history of every batch of 4 bricks that gets sent out in a bag.
I will be commenting on this when I have it prepped properly.
BUT-- it will squeeze out confirmation of replacement notes. It should, anyway.