What are CryptoTitties? CryptoTitties are ERC721 digital art collectibles built on the Ethereum blockchain. Collect, auction and participate to the crypto-contest. Our first contest consists in accumulating the most support votes to win a real motorboat! 1- Buy a Cryptotitty 2- Share, Get Support Votes 3- The Cryptotitty with the most support votes will win a REAL motorboat when the 144 CryptoTitties are soldout and votes have generated at least 2 ETH for charity.