Ben Delo and Christopher Harborne - the two men who each donated £36m to Reform UK - have been described as “crypto-billionaires”. But what exactly is cryptocurrency, and what purpose does it serve? The World At One’s Sarah Montague and PM’s Evan Davis explore the role of private money and find out whether it's here to stay? Listen to the World At One and PM on BBC Radio 4 and BBC Sounds. For the latest news download the BBC News app or visit BBC.com/news #CryptoCurrency #Crypto #Finance #BBCNews