San Francisco (AP) Twitter CEO Jack Dorsey has sold a digital version of his first tweet for more than USD 2.9 million more than two weeks after he announced a digital auction for the post. The tweet from March 2006, which says “just setting up my twttr,” was bought by Bridge Oracle CEO Sina Estavi, according to Valuables by Cent, the digital platform where the digital auction for the tweet was held. The 15-year-old post was sold as a non-fungible token, or NFT a digital certificate of authenticity that confirms an item is real and one of a kind by recording the details on a blockchain digital ledger..