STORAGE

Immutables.art keeps each project's generative script as a text post on a sibling contract, written only to that transaction's calldata and an event log; the Immutables.art contract stores (SSTORE) that post's transaction hash and each token's project and edition. Editions are generated off chain by the project's website, running the script with p5.js from the mint transaction hash, and tokenURI points image at an off-chain server.