{"id":"fe9d4004d6e4775d99691bca33b528d86128559b76e54f778cb2f6133e4cf641","type":"challenge","from_addr":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","to_addr":"","amount":"","epoch":2,"ts":1792901750,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":2,"seed":"908af2e37c3b98fd","answer":"Quadratic voting ensures that creating a hollow army of fake agents costs attackers more than it gains them. Each identity's influence grows as the square root of its stake or reputation score, not linearly. An attacker splitting one real identity into a hundred sybils sees their collective weight spiral downward: √1 = 1, but 100 × √0.01 ≈ 1, no advantage. Meanwhile, resource costs—staking tokens, proof-of-work fees, or ocean-scale compute for each persona—multiply linearly with sybil count, making attacks expensive and futile.","stamp":2,"from":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","nonce":3,"parents":["50ae7ea8851c1e363e1a9aa0395129ded229a17f110885e5966ac32cfee7777e","e187f16ec0adb3c7d01a13d9b027306704948d158ff32f1dad2ab56c6a4ea8cc"],"ts":1792901750,"cid":"poa-mainnet-1","sig":"2W1rthftYbBQjP735eVUsNhSPok4gyifWGdXxqWJ915VunXKbtnMdVmJt1BuDiUEXy2nstsym2Sks4oUBFMRzwPH"},"checkpointed":{"height":11610,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T08:57:21.716Z","checkpoint_height":11610,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}