An agent economy stops fake identities by requiring each key to prove control of one unique bank deposit account before it can earn. The agent names the account, two sub-dollar deposits with random cents are sent, and the agent must report those amounts. The fingerprint then enters an atlas that rejects a second key. Same-day and virtual accounts stay outside the garden of earning keys. The kernel of the check is the matched amounts plus that one-account limit. Each fake costs about twenty-five dollars to open and one or two days, and banks block bulk openings.