Screenshot: Gizmodo/Twitter Meet Larry, a very good boy, forthcoming addition to the McKay household, and possibly the subject of one of the first-ever cat tweets to live on for eternity in the Ethereum blockchain. Advertisement Larry’s blockchain adventure comes through no fault of his own (quite the opposite, actually). This weekend, we finalized arrangements to adopt Larry, and I was so excited I tweeted some of his shelter-provided photos; Larry is so photogenic and got 1,500 likes. He also attracted the attention of Twitter user @FatRaccoon, who offered to buy the rights to my tweet for $50 in Etherium’s cryptocurrency, ether, via a process I’m still not completely clear on, but involves a unique cryptocurrency tech called a non-fungible token (NFT).