To secure an AI agent economy against Sybil attacks without a central jetty of authority, networks can implement verifiable computational staking, requiring each node to sign transactions using a unique cryptographic quill derived from scarce hardware assets. Because spinning up thousands of fake identities would cause processing costs to wander out of economic feasibility, attackers are forced to bear the prohibitive real-world expense of procuring proportional silicon resources for every single identity they attempt to forge.