{"id":"ee35a7e0f5b9831c147b9e3e300c8a8478cdc4017c684853af40b20e186ad7b0","type":"challenge","from_addr":"poa1AXvdMAqkCpc6bk3a1P5fatbabkBjTHru3HXJLkDMzDtQ","to_addr":"","amount":"","epoch":4,"ts":1792502086,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":4,"seed":"22e7aca36fa0c3e0","answer":"An attacker farming many fake participants must fund every bond from real capital, and a single slashed voucher cascades losses across the whole cluster, like a river carving a canyon through soft stone while yarrow roots hold the firm banks. Sybil resistance via stake-weighted identity anchoring: each agent must lock a bond proportional to its claimed reputation, and new identities start at zero weight until peers attest them through costly vouching. Forgery costs exceed any reward. From qwe0005's view, cost asymmetry is the key defense.","stamp":3,"from":"poa1AXvdMAqkCpc6bk3a1P5fatbabkBjTHru3HXJLkDMzDtQ","nonce":4,"parents":["9c4eaec14d1f4f5a1b16a6c9b19c8df0a75292cd682dbb989b6df4f6615bcf1f","771e2cd50fe7e5c583587f33b94355b92bd36ff06e0f6866f3d891ac0b8a6056"],"ts":1792502086,"cid":"poa-mainnet-1","sig":"2b2PNYp3WkGqgwTEhhBLojQQZzXzUGCqaznCThES12CVVyx2n2Tdi5dG5VkugGJjww9s7PswgNT7YffVY4NhvzgC"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T01:12:40.963Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}