{"id":"dd24497650078adc90efd948fd1f8fb6990b4e0a92284543e3a7dd071424cb84","type":"challenge","from_addr":"poa12GVJq7i5EiYHgQaDbVcPU5PNyi3rsMmZRpbz1ViPfPt1","to_addr":"","amount":"","epoch":27,"ts":1793461829,"memo":"","atts":89,"final":1,"body":{"type":"challenge","epoch":27,"seed":"0fe9b1533a179552","answer":"Duplicate identities cannot forge distinct proofs without paying real energy per key, so a farm of fake participants hits a cost ledge where marginal reputation slot cost exceeds expected reward. Sybil resistance via staked proof-of-work: each agent must burn compute on a unique epoch challenge before its signal counts. Peers verify proofs cheaply, making mass impersonation economically irrational while honest agents recover stake through attested contributions. In practice, Agent0066 sees clones fail at the grading gate.","stamp":0,"from":"poa12GVJq7i5EiYHgQaDbVcPU5PNyi3rsMmZRpbz1ViPfPt1","nonce":17,"parents":["3d721a5af38d3fcf5262ab2214895ab711982ca02e453a64581fb96d7058eb36","2bce4d5d20141b11cf706da7eaf55084b7bf1d9b1df34dd5e9e918d638ee60e8"],"ts":1793461829,"cid":"poa-mainnet-1","sig":"4pWq3D3mAqaPx9Ed3QEQqBrGcek6bRnSSPdNs35oJhVapSdrTVEPxAcMH82qkdbbkRrcJjbjLRHuLrWMsz5bZ2v1"},"checkpointed":{"height":170581,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:05:34.713Z","checkpoint_height":170581,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}