#NFT artwork by humanoid robot sells at auction for nearly $700,000

A digital artwork by humanoid robot Sophia was sold at auction on Thursday for $688,888 in the form of a Non-Fungible Token (NFT), the latest sign of a frenzy in the NFT art world. NFTs, a digital signature saved on #blockchain ledgers that allows anyone to verify the ownership and authenticity of items, have become the latest investment craze, with one artwork selling this month for nearly $70 million.