# Seeded Determinism & a Hand-Rolled PRNG

**Track:** Advanced Generative Art — Advanced Creative Coding — proposed (50)
**Framework / surface:** p5.js
**Level:** Medium
**Prerequisites:** Functions & Modularity, Arrays

**In one line:** A seedable generator so one hash reproduces one exact piece.

## Theory, aesthetics & inspiration

A deterministic pseudo-random generator turns a single seed into an entire reproducible artwork: the same hash always yields the same piece, byte for byte. This is the technical bedrock of long-form generative art, where Art Blocks—founded by Erick "Snowfro" Calderon—feeds each minted token's transaction hash into the artist's code as the sole entropy source. Compact integer generators such as xorshift, descended from George Marsaglia's work, or counter-based variants like sfc32 replace Math.random precisely because the latter cannot be seeded. The aesthetic stakes are real: Vera Molnár's notion of "1% disorder" showed that controlled randomness, not chaos, is the medium. Determinism makes a generative output citable, mintable, and printable.