Mining involves solving a hard mathematical problem and miners typically use large numbers of computers to speed up the number-crunching involved.

BBC: Bitcoin miners generating high energy bills

Fifty bitcoins are released when that block is done and the work, which involves solving a hard mathematical problem, is completed.

BBC: Rewards set to halve for digital money miners

Mining involves solving a hard mathematical problem and miners typically use large numbers of computers to speed up the number crunching involved.

BBC: Bitcoin miners hit back at cyber-thieves

People generate or "mine" Bitcoins by participating in that network - for instance, by solving a complicated mathematical problem using their computer.

BBC: Canadian man to sell house for Bitcoin virtual currency