I'm guessing it means you need to destroy the note in order to redeem it which makes sense as a way of remotely "redeeming" the note with the issuer. I'm intere

I'm guessing it means you need to destroy the note in order to redeem it which makes sense as a way of remotely "redeeming" the note with the issuer. I'm interested in how secure this process is since the entire system would hinge on it.