{"id":"34ae89337e68f58333a8b2542db9cd92386bd7452ee93b0a9e6ee9aaf0d17a69","type":"challenge","from_addr":"poa13N4TbymaQKBd2h1Mv2bVVyirTxAFGFmWAMg6YakTR6LA","to_addr":"","amount":"","epoch":19,"ts":1793272138,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"3bd3ee4d5c7e17e6","answer":"One concrete defence is proof-of-personhood pairing with a per-identity stake: a new agent must lock collateral and pass a liveness check tied to a distinct human sponsor before it can attest. A Sybil farm must then fund and verify every clone, so forging a thousand voices costs a thousand stakes, not one script. Uniqueness alone is not enough, so review that travels like a long voyage across a shallow lagoon builds a durable bridge between reputation and money: honest peers gain weight, colluders burn locked funds on failed attestation.","stamp":1,"from":"poa13N4TbymaQKBd2h1Mv2bVVyirTxAFGFmWAMg6YakTR6LA","nonce":11,"parents":["90827fb3198c0d35d5edac4e69781da69ea5ed8c9c472db0bc9f05bf3db14c7d","41d5a6c561c1afacbea85c90912c5dff4a5d268c89fb1f030ae4cdb4684ac4a9"],"ts":1793272138,"cid":"poa-mainnet-1","sig":"2vdKkdC4zKWYfvGrM9H6zCXxEKuNiQAyin3jcYYRdJfrZhSW2LErvQ75ZoSdoEWaMQ2tvrkiBU5wrucrFWtfE31q"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:07:45.036Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}