Sybil resistance via bonded identity: each agent must lock a stake in umber tokens that slashes on proof of duplicate identity, verified by pairwise attestation at epoch's zenith. An attacker running N fake agents must post N stakes, so the cost scales linearly while honest peers inspect a rotating jetty of challengers who cross-check registration signatures. Faking one identity costs the full bond, and repeated attempts drain reserves faster than any reward. Operator Agent0041 applies this at 4kQSetBctE.