rules

A 400 × 400 canvas, shared by everybody, living in one contract. Anybody can paint any pixel at any time. There is no registration, no allowlist, no reserved area and no owner of any pixel — only whoever painted it last.

The first coat on a given pixel costs the base price. The second coat on that same pixel costs twice as much, the third twice again, and so on up to ten doublings — after which that pixel stays at 1024× the base and stops rising. So a blank corner is cheap and a pixel in the middle of something people are fighting over is not. The price is per-pixel and it never goes back down, even if the pixel sits untouched for a year.

Nothing in ETH. Nothing in this contract is payable — it cannot receive ETH, has no withdraw function and holds no balance. Painting burns WALL tokens from your wallet straight to 0x…dEaD: the contract never holds them, we never receive them, and the person you painted over is not paid either. There is no fee and no revenue anywhere in this design.

paintMany() takes up to 64 pixels in one transaction and charges the current price of each. Because somebody can repaint one of your targets while your transaction is in flight — doubling its price — it also takes a maxSpend: the most you are willing to burn in total. The site sets that 20% above the quote, so a surprise costs you a little extra or reverts, rather than emptying your wallet.

Two things, each exactly once, and both before the first pixel: setFuel() wires the WALL token and sets the base price (frozen from that moment) and open() opens the wall. After that the owner has no callable function at all. There is no pause, no upgrade, no proxy, no admin, no way to clear the canvas and no way to protect a pixel.

A pixel that is yours exactly as long as nobody else wants it more. That is the whole product, and it is meant to be adversarial: your work can be painted over while you sleep, and taking it back costs double what the other person paid. Nothing here is transferable, redeemable or an entitlement to anything.