ColorHueState (2023) by Jurgen Ostarhild is an unlimited on-chain SVG image machine rendering the heartbeat of the Ethereum blockchain. Each hash of the current block height is materialized into a chromatic SVG composition of four concentric rings encompassing the RGB color space. Each block hash is unique and can be captured as an NFT (ERC-721). Minting incurs no cost except network fees.

The four rings of a CHS are composed of outer ring A, followed by ring B, then ring C, ending with inner ring D. Each ring starts and ends with a six-character Hex color code eventually making up the first 48 characters of a block hash. The hexadecimal RGB color space encompasses a total of 16,777,216 distinct alphanumeric color values of which 46,656 are permutations of only letters and 1,000,000 of only numbers.

The code of this work is stored on the Ethereum blockchain. License: CC BY-NC 4.0