Color is the essence.

Ousia is a collection of 10,000 fully on-chain generative artworks on Ethereum, each rooted in the palette and pixel count of a CryptoPunk.

The name comes from the ancient Greek οὐσία — essence, substance, or being. In philosophy, it points to the question of what a thing is beneath its changing appearances. Ousia turns that question toward a digital object:

A CryptoPunk is usually seen as an image, a character, a status object, a historical artifact, or a token. Ousia looks past that surface and asks what can still be carried forward when the figure is removed.

Each Punk has a fixed palette and a precise count of colored pixels. These are basic facts of the image itself. This way of seeing was shaped in part by punks.wtf, which helped make the color structure of CryptoPunks visible.

For Ousia, this becomes the ground of the work. Color sets its vocabulary. Pixel count shapes its density. Geometry gives this material a body: circles, spheres, motion, and light.

Each Ousia is connected to a specific Punk through its source data and exists as its own generative composition.

Ousia begins from public on-chain data and returns to the chain as a complete artwork.

The metadata, SVG preview, live HTML artwork, rendering code, and source-derived data are all returned from the contract. The website is an interface. Marketplaces are interfaces. The artwork itself does not depend on either.

Its on-chain form is part of the project's meaning. If Ousia is about what remains, then permanence is not just a technical feature.