The proof
Ask the chain yourself.
Claiming "fully on-chain" is easy. This page lets you check it: it calls the contract, takes back the picture the contract drew, and compares it with what this page drew locally. If they differ by a single character, it says so.
Live check
This runs eth_call against Robinhood Chain. It is a read — free, no wallet,
no gas, no transaction.
What most "on-chain" collections really do
The common setup
- Image — a JPG or PNG on IPFS, or a CDN
- Metadata — a JSON file, also off-chain
- tokenURI — a link pointing outward
- The chain holds — a number and a URL
If the pin lapses, the gateway blocks you, or the company folds, the token stays and the picture goes.
This setup
- Image — run-length pixels in contract code
- Metadata — assembled by the contract in the call
- tokenURI — a data URI, self-contained
- The chain holds — everything
There is nothing to keep paying for and nothing to keep online.
Three contracts, and what each one is for
The trait store can be sealed. Once sealed, no one — including the owner — can add, replace or remove a single pixel. Minting is blocked until it is sealed, so a collection can never be sold on art that is still editable.
Storage, honestly measured
Pixels are stored as run-length pairs and written as contract bytecode (the SSTORE2 pattern), which sidesteps the 24,576-byte limit on a single contract and costs far less than ordinary storage. A minted token itself stores only seven small numbers — one index per layer.
If this website disappears
Nothing happens to the tokens. This site is a convenience: a nicer way to pick traits
than typing seven numbers into a block explorer. The picture, the name, the attributes
and the rules all live in the contract, and any wallet or marketplace that reads
tokenURI gets the complete object with no help from us.
That is the whole point, and it is the one claim on this site you can check without trusting a word of it.