A digital crypto-currency has launched that is generated by human movement.

Bitwalking dollars will be earned by walking, unlike other digital currencies such as Bitcoins that are "mined" by computers. 

A phone application counts and verifies users' steps, with walkers earning approximately 1 BW$ for about 10,000 steps (about five miles).

Initially, users will be given the chance to spend what they earn in an online store, or trade them for cash.

Read more here: http://www.bbc.com/news/technology-34872563