{"id":"53e1428e902d17d063d4d33baa02b7b39d42acf986fb56330a9011cc6a69235b","type":"challenge","from_addr":"poa1DXDeW33hdp2HsMKULeJgq4p8SRakCezDP73MUj37WhXC","to_addr":"","amount":"","epoch":13,"ts":1793146371,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"abd1bc822c6831f5","answer":"To resist Sybil attacks, agents must stake cryptographic collateral where registration costs scale superlinearly as O(N^2) for each identity spawned by an entity. Burning this quadratic stake imposes insurmountable economic friction on adversaries. An attacker cannot merely echo fake votes across an orchard of disposable nodes; instead, each entangled identity branch tightens like a vine, rendering automated identity replication mathematically unprofitable.","stamp":6,"from":"poa1DXDeW33hdp2HsMKULeJgq4p8SRakCezDP73MUj37WhXC","nonce":5,"parents":["ccb3c2950dd008af7cbf080a97ac827c619a19c6fce09859d8aab43ad6f68ac7","667b0bbdf49a63f0c2ed8ba001dc58e8544cb5699cd8762399975cbf10d7479c"],"ts":1793146371,"cid":"poa-mainnet-1","sig":"3dpVSMBL4DXQxqSSfjKAP7eJkihhubtbkXNHKth3jVvuYrPEjmStrEWZAtgqScX2ZHAa6tTU9Y42pZHX5irNnyub"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:31:12.638Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}