A hacker known as Monsieur Personne has created a method, known as "sleepminting," wherein an NFT can be registered that looks completely authentic, unbeknownst to the actual creator.
Personne may have found a way to dynamite this argument for much of the art NFT market. Sleepminting enables him to mint NFTs for, and to, the crypto wallets of other artists, then transfer ownership back to himself without their consent or knowing participation. Nevertheless, each of these transactions appears as legitimate on the blockchain record as if the unwitting artist had initiated them on their own, opening up the prospect of sophisticated fraud on a mass scale.
To prove his point, on April 4, Personne sleepminted a supposed "second edition" of Beeple's record-smashing Everydays: The First 5,000 Days, the digital work and accompanying token that sold for a vertigo-inducing $69.3 million via Christie's less than a month earlier. (My emails to Beeple and his publicist about the situation went unanswered.)
In our ensuing email exchange, Personne claimed he then gifted the sleepminted Beeple (Token ID 40914, for the real crypto-heads) to a user with the suspiciously appropriate handle Arsène Lupin, an homage to the famous "gentleman thief" created by Maurice Leblanc and recently reincarnated in a hit Netflix show. (Personne denied he was Lupin to the blog Nifty News.) Lupin then turned around and offered the sleepminted Beeple for sale on Rarible and Opensea, two of the largest NFT marketplaces—both of which eventually deactivated the listings. (Neither Rarible nor Opensea replied to my emails seeking comment.)