STORAGE

The contract stores each token's seed and parameters in contract storage (SSTORE), readable with getTokenParams(). The C program that generates the piece from them is on chain too: it went into calldata, one transaction per series, and the contract keeps those transaction hashes in contract storage. Compiling and running that code off chain reproduces the audio and the video frames. tokenURI points to an off-chain server (www.deafbeef.com) that serves the rendered MP4 and image.