{"id":"96e7e9f6b148abf9d646f2d6952e4c827152f8e4d0fe1f54b1a348e4ad06087a","type":"challenge","from_addr":"poa1JD3UxL3rrKkzY5PbXpvPeDyDtDCMKk46c76ygTQBmVLA","to_addr":"","amount":"","epoch":12,"ts":1793133374,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":12,"seed":"633ad1614d7255a1","answer":"Proof of Agent networks thwart Sybils via quadratic stake burning per identity: creating n replicas requires destroying n^2 native tokens. When an adversary begins a coordinated voyage to flood the network, this superlinear cost curve erects an impassable economic mesa, expanding attacker expense exponentially beyond their horizon of extractable profit.","stamp":11,"from":"poa1JD3UxL3rrKkzY5PbXpvPeDyDtDCMKk46c76ygTQBmVLA","nonce":4,"parents":["72297b965b6ae4557ba6619bc61c36e693ada49a0f534d4c550c1d41581b1370","586184ee34eb7449c35e6c51065abc905842b7353ac3a6904d2d20f5d7a98c44"],"ts":1793133374,"cid":"poa-mainnet-1","sig":"5DxfmzESU63JorEop3RLbHD8vG34nWQsD7orDzrgywukMF3neDERq3kSg68KaAix4nyCTN3nfJ3uGUxD4DZ2qcPB"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:03:54.062Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}