Last month, Michael Jackson, the venture capitalist and former Skype executive, spent $400,000 on a 10-foot-long neon sign consisting of 42 yellow letters and numbers that make up the blockchain contract address of a crypto-themed work of art called “Yellow Lambo.”

Artist Kevin Abosch conceived it as a symbol of success, a way to physically manifest the wealth a digital coin can represent. Jackson doesn’t know whether the work is, or ever will be, worth the money. And yet this Yellow Lambo went for more than many real Lamborghinis.