Buried deep in a Welsh landfill, beneath layers of years-old garbage, there is a hard drive that holds the key to almost $800 million in bitcoin – or so James Howells believes, after accidentally throwing the drive away in 2013.

James Howells has begged officials to let him dig through a South Wales landfill to find a lost Bitcoin wallet that he says is worth around $800 million.

A man wants to buy a landfill in order to look for and retrieve a Bitcoin hard drive that he lost in 2013 and that is worth millions of dollars.