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34 sats \ 0 replies \ @m0wer OP 4 Aug \ parent \ on: Long-form Content: ecash (Transacting with ecash while offline) by gandlaf21 bitcoin
For the case of vending machines that's fine. The problem to solve is that the machine can operate without internet, not the customer. So as a customer you can easily get the exact denomination and sign it for the machine online and then the machine does not need internet to verify it.