In March 2021, the auction house Christie’s sold the digital art piece ‘Everydays’ for over $69 million. The piece, a collage of smaller pictures that had been curated day by day since 2007, was remarkable, but the most notable aspect was not only that this was the first time that a non-fungible token (NFT) had been sold by Christie’s, but also that a cryptocurrency had been accepted as part of the sale.