INTERNATIONAL – Brazillian computer programmer Ricardo Reis built a Coca-Cola vending machine that accepts bitcoin payments over the Lightning Network.
Reis described his feat in a Medium post on October 2, in which he also mentioned the accessories that were employed to create the bitcoin-enabled Coke portal, according to a report by cryptocurrency news site ccn.com.
In addition to applied programming techniques and vending machine hardware that could take instructions from the user-interface, Reis also used the Lightning Network to enable faster and cheaper bitcoin transactions.
Unlike a normal bitcoin transaction, which gets recorded and verified on a public blockchain, the Lightning Network adds a secondary layer to create a payment channel that does not require transactions to be confirmed by the main blockchain until the users close the channel.
Thus, users can make a series of the transactions without needing miners’ confirmation. Once they close the payment channel on the Lightning network, its cumulative output gets recorded and verified on the main bitcoin ledger.