To pay someone offline, the sender simply shares a cashu token data (e.g., via QR code, or Bluetooth).
The receiver validates the token’s signature against the mint’s public key.
No network connection is needed.
check #cashu documentation from nostr:npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg
