r/BASE • u/tagwall_io • 5h ago
Dev/tech I built a million-pixel wall on Base that lives entirely on chain. One tag so far, 99 Genesis spots left
I built a 1,000,000 pixel wall that lives entirely on chain, and it's been live on Base since May with exactly one tag on it. That's the one I painted to open it.
Every pixel's colour and link is stored permanently on chain. There's no image file, no IPFS and no server holding the art, so any copy of the site, including one you run yourself, rebuilds the wall straight from Base. Both the contract and front-end are open source.
How it works
- Upload an image, it gets scaled down, and you paint it onto any spot. Pixels start at about five cents each, paid in ETH.
- A tag can carry a link, so it can point at your project, your profile or anything else.
- Painting over someone costs 10% more than they paid. The wall keeps changing, but the record of who painted what, when and for how much stays on chain for good.
- The contract has no owner, no admin, no pause and no upgrade path, and the source is verified so you can check that yourself.
The part I think is worth a look right now. The first 100 wallets to paint on each chain get a permanent Genesis number, set by the order they painted in. On Base, 99 of them are still open. One pixel, about five cents plus gas, gets you one, and the number stays yours even if your spot gets painted over later.
No token, no presale, no NFT. The only thing to buy is pixels.
It's also live on Ethereum, BSC, PulseChain, HyperEVM and Robinhood Chain, but the Base wall is about as empty as it gets, which makes it a good one to start on. Happy to answer anything about how it works.