Does it have to be physical?
We transact ecash offline
Does it have to be physical?
We transact ecash offline
You can't, unless you have an exorbitant amount of trust in the people you're buying from. Weird how this misconception seems to be so widespread.
Trust like trusting someone writing you a cheque
Minibits (on my Android) has a nice feature whilst offline for sending sats in exact ecash denominations
Whilst offline (on my iOS) I’m using https://wallet.cashu.me/ to scan qr code… it recognises it and sticks it in a queue for later… when I get online I can redeem it
If the sender hasn’t reverted it, or cancelled the cheque, not ideal but possible
Among a local community there would be more trust… I’m thinking in an extreme scenario
Then there’s interesting things such as this https://offline.cash/




With that level of trust just write and sign some ious. It's in no way a valid replacement to physical cash