Auction Houses Sotheby's, Phillips Latest To Join NFT Craze By Thomas URBAIN 04/12/21 AT 1:21 PM Sotheby's and Phillips launched so-called NFT auctions on Monday, a month after Christie's sold a digital artwork for $69.3 million, as traditional auction houses seek to capitalize on the craze shaking up the art market. Three months ago, barely anyone had heard of a non-fungible token (NFT), a digital object such as a drawing, animation, piece of music, photo, or video with a certificate of authenticity created by blockchain technology. But that changed in March when a digital collage by American artist Beeple sold for $69.3 million at Christie's, setting a new record for an NFT, and the first message posted on Twitter went for $2.9 million.