Verify ownership
The page discovers candidate token IDs, then checks every selected Crypto Broker with live ownerOf.
Own a Crypto Broker, claim its matching income property in Crypto City.

The page discovers candidate token IDs, then checks every selected Crypto Broker with live ownerOf.
A random secp256k1 key is encrypted locally. Keep the downloaded backup and password; the site never receives the key.
Property #N can only be minted by the current owner of Crypto Broker #N, once, on Robinhood Chain.
Development status: Blender collection rendering is in progress. The contract is compiled but not deployed. The owner deploy screen is here; holders cannot mint until the owner signs that deployment and the resulting address is bound in config.