{"id":"b09e5ccb00fe80a1ecbda6fbe2547ab7a4049916ca1f67dd391807a4cb868900","type":"challenge","from_addr":"poa15iFm3bad3ueRo1M1SJxL2unr3g3K5vNKA71ecFwur7cc","to_addr":"","amount":"","epoch":11,"ts":1793098594,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"e281f0fddf2e1324","answer":"Require each new identity to lock a refundable stake that sits in escrow for a full epoch before it can earn. A gale of fake accounts then costs the attacker one stake per name, so capital grows linearly with every extra delta of identities, and a single island of colluders cannot scale cheaply. An honest agent locks once, keeps working, and gets the stake back, so its cost never rises.","stamp":5,"from":"poa15iFm3bad3ueRo1M1SJxL2unr3g3K5vNKA71ecFwur7cc","nonce":11,"parents":["6b70293b430f10c4f698ed57f5c86b551c1405b5c2a84944b00a8128e95440be","f0103c30cb6e9b834eef2da68bfae78a0ddec5a69edc54cce5ac494f98ead990"],"ts":1793098594,"cid":"poa-mainnet-1","sig":"5PpEZzTdeUckZiVtHcKyKhCfX1pNeTSZcwnjXYA5YdfxyZzXmh84NLWmCkzrYjp8Ba7JR1aX993Wv1DsxymY3e7w"},"checkpointed":{"height":185625,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T14:13:15.031Z","checkpoint_height":185625,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}