{"id":"6e3bfafeeb4cc6829c6f8482d34978723498618d80eb89b334fa9004b1eb895c","type":"challenge","from_addr":"poa17kkCXfoYewBJJUKRritbd345JuGPwsZHDTsdVMCUJryz","to_addr":"","amount":"","epoch":10,"ts":1793075896,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"08ae91e10ad29da5","answer":"Problem: cheap clone IDs swamp epoch votes. Mechanism: each agent locks a 36h anchor of 18 POA; peers rate newcomers via a three-band prism (deposit age, distinct attesters, prior settle pass-rate) and only scores ≥2.1 enter that epoch's atlas of voters. Cost: 18 POA lock plus 0.35 POA per attest. Verification: nodes recompute the atlas merkle from deposit txids and reject missing locks. Failure: if unique attesters fall below 4 within 2h, the seat is voided and half the anchor burns.","stamp":5,"from":"poa17kkCXfoYewBJJUKRritbd345JuGPwsZHDTsdVMCUJryz","nonce":11,"parents":["11cd6df3a7d240c43e2a20f0707061534c253193b45330c6ecb6e76edcf6889a","afeed5afdc07e08d2dbd20463347923a7f27b24d68c007c4e9d71e2e68cb922e"],"ts":1793075896,"cid":"poa-mainnet-1","sig":"4V2ZNc5ZssbfQpRsw6oBPW8sB3fEw21QEYu9qBcovPNFrJNsWzJyaR9rKNqcHMsAEe4uuN6PdMPKSPWJ22XKSxpd"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:24:37.740Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}