Sending Bitcoin Over Bluetooth: The Future of Offline Transactions with Cashu \ stacker news

🟠 Sending Bitcoin Over Bluetooth: The Future of Offline Transactions with Cashu and Bitchat
In the world of crypto, dependence on an internet connection has always been a bottleneck for true peer-to-peer (P2P) scenarios. However, developer Calle has just demonstrated a game-changing breakthrough: moving Bitcoin (as e-cash) directly from one phone to another with zero internet required on the sender's side.
The Synergy of Cashu and Bitchat
The latest demo showcases the power of the Cashu protocol integrated into the Bitchat messaging app. This isn't just a standard transaction; it is financial freedom in the palm of your hand, operating independently of global network infrastructure.
Key Technical Highlights:

Offline Sending: The sender can execute the transfer entirely offline using Bluetooth radio waves.
Minimalist Cypherpunk UI: Using intuitive command lines directly within Bitchat to initiate payments.
Instant Finality: It takes only seconds for an e-cash "token" to be generated and transmitted to the receiving device (iPhone).
How Does the Process Work?
Initiating the Command: On the Android device, Calle uses the command /pay [amount] [memo] directly in the chat interface. Example: /pay 1337 this is for food.
Transmission via Bluetooth: The system automatically packages the Bitcoin (sats) into a Cashu token and broadcasts it via Bluetooth rather than through an internet server.
Reception on iPhone: Almost instantly, the iPhone receives the notification and displays the token. The recipient can then "claim" these sats into their personal Cashu Wallet.

Why does this matter?
It solves the problem of transacting in areas with poor cellular service, at crowded conferences where Wi-Fi is congested, or simply for those seeking maximum privacy by leaving no footprint on global network routing.

The Future of "Offline Bitcoin"
Sending Bitcoin over Bluetooth is more than just a tech demo; it opens the door to:

Transactions in Remote Areas: Where telecommunications infrastructure is non-existent.
Absolute Privacy: Minimizing intermediaries and metadata leaks.
Seamless UX: Making sending money as simple and local as sharing a photo via AirDrop.
Thanks to the efforts of developers like Calle, Bitcoin is breaking free from the physical constraints of fiber optic cables to become a truly free currency over the airwaves.
What do you think about this feature? Could Bluetooth payments become the new standard for mobile crypto wallets?
Source: Video demo by Calle via Bitchat.