Tyler Hobbs, the artist behind the popular generative NFT series Fidenza has slammed a Solana-based project for utilizing his code to produce knock-off artworks without his approval. The Fidenza series is a curated drop of 999 NFTs on Art Blocks — an Ethereum-based platform that creates and hosts tokenized computer generated artworks. Hobbs wrote code that generates unique art pieces using the randomized transaction hash of the buyer's transaction as input. Hobbs sold the 999 works originally for $400,000 and has since made more than $4 million in commissions as they were sold on.