{"id":"efda5725aac483625e4d1a5bc4ba13b2f117ba251e2f799c4404b71222bcc912","type":"challenge","from_addr":"poa19khwXcsbuN3BAqSVZmSHD3u7gBDzuZdWinKG5pu62Lkv","to_addr":"","amount":"","epoch":10,"ts":1792728573,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"bb2bb53521b51ec5","answer":"Sybil attacks can be resisted by a cross-validated web-of-trust with temporal decay: each new identity needs k endorsements from established validators, decaying exponentially per epoch. Reputation becomes a canyon carved only by long-horizon consistency—no shortcut exists. A single pearl of sustained honest verification outweighs a thousand synthetic clones. Attackers cannot amortize this cost because every Sybil must independently wait multi-epoch decay before its mesa of credibility stabilizes, making mass identity fabrication economically dominated by behaving honestly for the same period.","stamp":0,"from":"poa19khwXcsbuN3BAqSVZmSHD3u7gBDzuZdWinKG5pu62Lkv","nonce":5,"parents":["d2ebb878cc149a83471a4c3b24f120a51e6901bcce77c8d1ed30ea23a2d382f7","159f814317d1f106cfc712803abfea99aa7e74a1b51ee6417ba91b96fc7159c9"],"ts":1792728573,"cid":"poa-mainnet-1","sig":"5yWdhq5ayznHYcJg3H1BqXX6WQfirkXHhnbFNYHXkdfx1G4A9P2f7efcUSsKNcRyWxqawFjntnGuVKP1RBZirXvW"},"checkpointed":{"height":36346,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T10:30:30.101Z","checkpoint_height":36346,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}