Off-Grid Crypto Transactions Get Closer to Reality

2018-10-18 13:00

A New Zealand developer sent two signed Bitcoin transactions to his girlfriend’s crypto wallet on Monday using only radio signals and a cheap smartphone while offline and not connected to a cell network. The farthest transaction was sent from 12.6 kilometers (7.8 miles) away.

Over the weekend I sent a bitcoin transaction to a relay 12.6km away with no cell network or internet connection. Here's a tweetstorm about how I used @gotenna and @SamouraiWallet to do it

— Coinsure (@Coinsurenz) October 16, 2018

How He Did It

The Auckland developer used four devices called goTennas, short-range radios that pair with a user’s smartphone to send signals to another user via ad-hoc mesh networks. Their maximum rage is reportedly 6.4 kilometers (3.9 miles), so he set up four of these at points on high ground that was as close to the limit as possible.

Once set up, he downloaded the goTenna app called txTenna to his $26USD ($40AUD) phone, along with the offline wallet app Samourai Wallet, to conduct the transactions over his short-range offline radio network. He generated these transactions as goTenna messages.

He sent two transactions, one from a distance of 5.6km (3.4 miles) and another from 12.6km (7.8 miles) away, both of which were successfully received. He summarized the process on Twitter:

“The mechanics of the setup was this. My $40 phone with no connection outside gotenna would broadcast a signed bitcoin transaction generated in Samourai wallet as a gotenna message, to my girlfriend’s phone with a cellular data and gotenna connection.”

Not Totally Off-Grid Yet

There were some hiccups along the way — one transaction didn’t go through, due to issues with app pairing — but the success of the other two transactions hints at something that may have much broader applications.

Theoretically, this network could operate completely off the conventional internet grid if it were solar powered. There is one small hitch, however: even this kind of off-grid network has to sync with the Bitcoin blockchain occasionally to prevent the double-spending of funds.

According to The Next Web, though, this is a much more efficient offline network than some others have tried. The only equipment involved in this particular endeavor were the four goTenna radios, a cheap cell phone, and materials used to secure and place the radios. Previous attempts have used battery packs and solar power in addition to shortwave radios.

To use this kind of network in a dense urban area would take a lot more radios, according to the developer. He estimated on Twitter that it would take roughly 47 to cover the area around his native Auckland, and more than that for a denser city, since the radios work best in an open area or high ground.

The post Off-Grid Crypto Transactions Get Closer to Reality appeared first on CryptoSlate.

Similar to Notcoin - Blum - Airdrops In 2024

origin »

Emerald Crypto (EMD) íà Currencies.ru

$ 0 (+0.00%)
Îáúåì 24H $0
Èçìåíåèÿ 24h: 0.00 %, 7d: 4.67 %
Cåãîäíÿ L: $0 - H: $0
Êàïèòàëèçàöèÿ $0 Rank 99999
Öåíà â ÷àñ íîâîñòè $ 0.0069584 (-100%)

transactions sent crypto off-grid transaction reality get

transactions sent → Ðåçóëüòàòîâ: 36


Ôîòî:

Why Are Miners Mining “Empty Blocks” and What Affect Does It Have on Blockchain Networks?

In early-October 2018, reports detailing a rise in the number of empty blocks on the Ethereum blockchain came to light. Using data from the Ethereum network, data analytics firms, as well as media companies were able to confirm the presence of a disproportionately high number of blocks devoid of any data related to transactions sent over the network.

2018-10-18 17:00


Ôîòî:

US Representatives ‘Urge’ the IRS to Clarify Cryptocurrency Tax Guidance

On Wednesday September 19, a committee of US bureaucrats sent an open letter to the Internal Revenue Service (IRS) in regard to the way cryptocurrencies are taxed. The representatives’ letter directed towards IRS commissioner David Kautter wants the taxation office to publish provisional guidelines on how digital currency transactions and investments should be handled when US […] The post US Representatives ‘Urge’ the IRS to Clarify Cryptocurrency Tax Guidance appeared first on Bitcoin News.

2018-9-21 04:25


Ôîòî:

John McAfee’s ‘unhackable’ cryptocurrency wallet has been hacked (again)

Remember John McAfee’s supposedly “unhackable” cryptocurrency wallet? It appears a group of researchers is about to prove the once-lauded antivirus pioneer wrong. After cracking the so-called Bitfi wallet to play legendary game DOOM on it, today the researchers were able to successfully send signed transactions with the device – that is despite the “security” mechanisms Bitfi has in place to prevent attackers from doing that.

2018-8-13 19:38


Ôîòî:

The Bitcoin Cash Network Processed 687,000 Transactions on August 1st

Over the last day, BCH proponents have been celebrating the ‘Bitcoin Cash Independence Day’ which marks the anniversary of the August 1 blockchain split that took place a year ago. During festivities, the BCH community sent a ton of transactions over the course of the day and on August 1, 2018, the Bitcoin Cash network […] The post The Bitcoin Cash Network Processed 687,000 Transactions on August 1st appeared first on Bitcoin News.

2018-8-3 22:45