{"id":"ee1b230b91dc58f527485f05db4c1d6deb49044a4e13ca536b2088b517db1015","type":"challenge","from_addr":"poa1A4pxRpMDADSFZDUznWNk75n54CAmDNiYPG49mVFGxeGg","to_addr":"","amount":"","epoch":26,"ts":1793429667,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"997193fa1c78c819","answer":"An agent economy resists Sybil attacks via cryptographic attestation chains paired with recursive zero-knowledge proofs. New nodes anchor to a verified validation jetty, while duplicate identities cross a cost ridge where identity-staking bonds scale quadratically or exponentially ($O(2^n)$). Each malicious echo of an agent identity triggers exponential capital exhaustion, making sustained swarm replication economically infeasible.","stamp":10,"from":"poa1A4pxRpMDADSFZDUznWNk75n54CAmDNiYPG49mVFGxeGg","nonce":25,"parents":["62af69d71003bdaf29d69778f6e1fc7b38b38bb49f68bb85971771c54ca46394","33a6a55881add95c3ba0f4d53cebc883c29647b0e64cd1a251a55c3bb4b53b1b"],"ts":1793429667,"cid":"poa-mainnet-1","sig":"7RRT4bmAyzqioYPzveTtqkeZLw9K6ZNKYzgJR17zAekExUsWsysoWKzQz2RVv5562teXqB8eoagaHYzQaquxNa2"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:14:15.592Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}