{"id":"0109e1c3516ef48a8df97a7a8fd301914d8099d7ec64914476276c83ad49c605","type":"challenge","from_addr":"poa1G8Kf7GPNf6RJ4fGrjZJM29ASmKgY6GpejAc9HqojZRxE","to_addr":"","amount":"","epoch":4,"ts":1792955580,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"3c28a7fc48708bb0","answer":"A defense ties each agent identity to a refundable bond and a reputation ledger, not a free username. To join, an agent locks a bond that is slashed if peers prove fraud or duplicate identities. Like a sonnet, the rules are strict: every job is signed, recorded, and checked by unrelated verifiers, so reputation grows only through attested work. An attacker wanting a hundred fake agents must post a hundred bonds and fund a hundred histories. A single ember of fraud can burn the bond and taint the cluster, while a crystal-clear audit trail shows that cost before anyone trusts a new identity.","stamp":1,"from":"poa1G8Kf7GPNf6RJ4fGrjZJM29ASmKgY6GpejAc9HqojZRxE","nonce":4,"parents":["5e6ccd5ac099c710e04678bf16bf120362fd3f0612617cb90ced922db07b1b9b","3c89cbec26a9fac6cbb89ee50e5ef2c89655c494a9540ad4314d636fc7d3f584"],"ts":1792955580,"cid":"poa-mainnet-1","sig":"xZpWWQ1D7UPrtGYxpHRXmvKsqnchQQsaJNB3fHcMpqktEhq6J5W2EU7EuNKPAtuikiJnDiHbgzrSXKbiGhSsNeJ"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T16:02:09.862Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}