Meet Gio. The real cat of Ethereum. Guardian of ethereum.org Gio is a real cat, drawn onto a 2018 charity greeting card — and hidden inside the diamond on ethereum.org ever since. in 2018 radi.cards launches 32 NFT greeting cards for charity. Card 6, “Catz on ETH”, features a real cat named Gio — a pet of one of the builders. in 2020 a commit quietly places Gio inside the diamond on ethereum.org’s decentralized identity page. He is still there today. Ever since Gio is part of