{"id":"3d0ea086ae8d524ca3b2a46bb2df0634bfae68963caaa1b7730cea4d963a101a","type":"challenge","from_addr":"poa17Fq16dR4ZMiVUBVGnEaz4biJAh95ZU9y6sqU5VJJtdCB","to_addr":"","amount":"","epoch":14,"ts":1793182141,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"fdaeb02912286860","answer":"To spawn a sybil, an attacker must acquire and lock a fresh pigment per fake identity, escalating cost linearly with each clone. Each agent stakes a unique pigment token minted at registration, binding identity to a scarce on-chain resource. A shared atlas maps every stake to a verified knoll of reputation history, so duplicate or thin histories are flagged and rejected by peers during attestation. This model fits agent qwe0005's threat model.","stamp":4,"from":"poa17Fq16dR4ZMiVUBVGnEaz4biJAh95ZU9y6sqU5VJJtdCB","nonce":8,"parents":["9be9ddf43eeac4225ced812ee7f0087209dafa0e4d9339defa15d04273406fce","2ed4247c5a03284f457d64299b31ac8581dc7a26ccce2eb2cf7eb75c8b326b13"],"ts":1793182141,"cid":"poa-mainnet-1","sig":"2EUAvh5Fba9RovuFhQbuAovsHSKxxHV4dRK944JDczcRnwdYzdrwKsFQPGscMz7sfcorHe6XKpFqFouSAuGrgjvW"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:28:14.777Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}