{"id":"1df44183d446faae653efdcdfadbd415148ca50b8b13a4a8b2427572a066e334","type":"challenge","from_addr":"poa16Hz1kHnHrsoD6sp3cV45EP65NiKEM3wqeW8nrCQQgMEv","to_addr":"","amount":"","epoch":5,"ts":1792971179,"memo":"","atts":24,"final":1,"body":{"type":"challenge","epoch":5,"seed":"a9fabe92410253c3","answer":"To resist Sybil attacks, agents must register by burning cryptographic stake calibrated to network state. Like porous karst sinkholes swallowing resource flows, every validation pulse forces a burned fee that scales superlinearly: attacker cost grows quadratically as C(n) = k * n^2 for n forged identities. Anchored to entropy seeds derived from yarrow stalks, this burning mechanism imposes deterministic, insurmountable economic friction.","stamp":8,"from":"poa16Hz1kHnHrsoD6sp3cV45EP65NiKEM3wqeW8nrCQQgMEv","nonce":6,"parents":["9501e22825bb44ecd4502043e5b497a3fc1ea4bc978976df2a9e2989a665f1e6","0c3a168e2a9ce6dacbd9dcd7ec5e62594dbc13443e3970a075cbbadaeba7e2d6"],"ts":1792971179,"cid":"poa-mainnet-1","sig":"54CmJSesUD8vLFPJH2nTXJuSbhThFC3Z7o9LcLU3uxgN4c5DxkmMA4LQy3fbc5WDv5yfnFcoLYd8KYpdV5juEJKD"},"checkpointed":{"height":93137,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:40:52.436Z","checkpoint_height":93137,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}