This Project Lets You Send Bitcoin Without Internet Access

The new Open Code project has created an infrastructure that will allow users without access to the Internet to send a Bitcoin transaction.

Called Darkwire and endured the official hackathon Bitcoin 2025, Open Code project It uses long radio radio and is designed to allow communication out of the net.

He was imagined and designed by pseudonym programmer ‘Cyber’ who currently earned a diploma from artificial intelligence and machine learning.

In conversation DecipherCyber ​​explained that Darkwire may be needed or desirable in situations where traditional communication infrastructure, such as the Internet, electric network or mobile networks, “unavailable or controlled”.

Cyber ​​gave an example of “censorship or politically sensitive regions”, such as Rafah crossings or Indo-Tibetan borders, as well as areas of disasters in which the infrastructure may have been destroyed or seized off the net.

“[darkwire is for] Individuals seeking privacy or want to bypass their communication and transactions, “they said, adding that the frame is not for a more leisurely bitcoiners.

“Imagine that it is related to TOR, but for this specific case of use,” they add. “Although Bitcoin (somewhat) is private, it fails when governments and regimes simply interrupt your internet supply, Darkwire aims to solve this specific question.”

In terms of how Darkwire actually works, Cyber ​​explains that the frame of Radio (Lora) Long Domet is used to create a network of networks, allowing devices to send small data packages, such as text messages or transactions of Bitcoin, at a distance of several kilometers without the need for traditional internet connections, mobile networks or satellites.

“At least one knot in the net must be connected to the Internet, so the transaction can be pushed to blockchain to check it out,” Cyber ​​said.

From the knot to the node

In addition to the long-term radio recovery, Darkwire also uses microcontrollers, such as Ardoino Uno, for the formation of a network-decentralized network in which more knots are connected to several other nodes, without centralized access points.

“When the user wants to send a Bitcoin transaction using Gui Darkwire, they determine the address and amount of the recipient using a local wallet operated by Bitcoinlib (Python Library),” Cyber ​​said.

Once this is done, the Darkwire graphic user generates a signed raw Bitcoin transaction in a hexadecimal format, with Raw transaction Hex then sent from a computer (via serial connection such as USB), on the Darkwire Node (which is a combined microcontroller and Lora device).

They add: “The Darkwire knot takes this transaction information, if necessary, fragments them into smaller packages and transfers them wirelessly using Lora.”

Ideally, each Darkwire knot has a range of 10 km with a direct visual line, although in denser populated environments the range would be between 3 km and 5 km.

“In the network network, the other Darkwire nodes receive these packages and transfer them forward, jumping from the knot to the knot,” Cyber ​​continues, adding that this procedure lasts until the transaction data reaches a certain Darkwire node that has the Internet access.

“This internet connected to the internet acts as an output point, broadcasting the collected and proven raw transaction of bitcoin to the global bitcoin network, where it can then be turned on in the block,” they say.

Just the beginning

At this point Darkwire remains entry into Official Hackathon Bitcoin 2025But Cyber ​​aims to further develop a project, perfecting it in a mature platform with an open code and making it an “industrial standard” in Loram based in Lora.

“Obviously I can’t do it alone, so I would appreciate and contribute open code,” Cyber ​​said.

The developer also noted that they have yet to implement several features of Darkwire, such as UTXO searches for messages, messages for messages, and also transferred to Nostr (Open Message Transmission Code).

And since Darkwire is still ongoing, Cyber ​​admitted that there are currently several limitations that can be resolved over time.

These include the relatively low permeability of Lora Radio and Lorin’s sensitivity to field obstacles, as well as Darkwire nodes addiction on online output nodes that could become a failure point.

But over time, as Darkwire networks grow, such restrictions should improve significantly, providing Bitcoin users in less favorable environments with funding to send the Bitcoin Walidator Transactions elsewhere in the world.

And at a time when the world is becoming more and more authoritarian and undemocraticDarkwire may become a vital tool in continuous use and growth of bitcoin.

“I hope that people living in any kind of authoritarian regime and state have to use Darkwire and put the truth out there,” Cyber ​​said.

Edited Sebastian Sinclair