Was just trying to replicate this. Looks like you can create the eCash token while offline and then send the token to the other offline cashu.me instance, but it’s not actually redeemed until the instance goes online. Seems reasonable to me. 

It’s a bit like printing the eCash token string (or QR code) onto paper and then handing someone the paper. You “sent” them eCash, but the token hasn’t been redeemed yet.

Is there anything to prevent you from sharing the token multiple times? Then it becomes a race to be the first to redeem it. 🤔