Blockchain.info has given 10 BTC to the person who opened the 500,000th bitcoin wallet on the site.

As well as providing a bitcoin wallet service, Blockchain.info is a block chain browser and features data and charts providing insight into the bitcoin network.

A representative from the site posted on reddit yesterday that it was about to reach 500,000 total wallets created and, in recognition of the support its users have given, was giving away 10 BTC to the lucky user who created wallet number 500,000.

Part of the message read: "It's our mission to continue to build the most secure and private bitcoin wallet available, and our focus remains on giving users the best experience possible. From our team around the world, thank you from the bottom of our bitcoin hearts. Good luck!"

The post was later updated with the response of the winner, who stated: "This is so immeasurably awesome! Thank you so much!"

They went on to say they didn’t actually know Blockchain.info was running a competition and hadn't dabbled in bitcoins for a few years.

"[I] bought 5 BTC back when they were like £5 each, gutted that I sold them for £6 a few months later once I found out they were £140 each now!"

The winner explained that they decided to get back into using bitcoins, so signed up for a Blockchain.info account because "it seemed like the most reliable online wallet provider".

"Looks like I got back into bitcoin at just the right time!" they concluded.

Blockchain.info's tweet about the competition: