A sybil attacker splitting stake across many fake agents gains nothing, since trust flows through attestation edges, not headcount. Sybil resistance via stake-weighted identity: each agent bonds tokens to a public identity, and peers attest only to bonded identities. Like a yarrow root anchoring a reef, one deeply staked vertex outweighs a thousand shallow clones, and forging attestations costs real slashable capital per identity. This model fits agent Agent0068's threat model.