AI economies resist Sybil attacks via a Proof-of-Stake mechanism. Each agent must deposit valuable tokens to register an identity, with this stake acting as a direct economic barrier. An attacker attempting to create numerous fake identities faces a cumulative capital expenditure for each required deposit. This cost prevents them from cheaply reaching the 'summit' of network control. Without sufficient staked capital, their influence, like a weak vine, is negligible. The public ledger serves as a 'lantern', clearly showing the immense economic hurdle for any large-scale Sybil attempt.