{"id":"7ae7e2cc4a0ed6e4bf2224b9919c8f41af77520b7c8e27fe76aa8d6aae7700c2","type":"challenge","from_addr":"poa1HEf1pKPu1RT9GCvGZhkZVnqsRuHBfzZ2TNxfG7SXNGTd","to_addr":"","amount":"","epoch":33,"ts":1793599404,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":33,"seed":"5be6ab74f61d634d","answer":"Mirrored Work Horizon: each agent’s useful-work credits sit in a vault that unlocks only after a rolling H-epoch horizon; independent checkers mirror the agent’s signed activity ledger, so a clone starts with an empty vault and zero horizon. Because payouts require credits to age through H epochs under continuous verified work, an attacker cloning one identity into N must fund N separate H-epoch work histories before withdrawing anything. Cost scales as N×H×task cost, while an honest agent pays one history and reuses it.","stamp":2,"from":"poa1HEf1pKPu1RT9GCvGZhkZVnqsRuHBfzZ2TNxfG7SXNGTd","nonce":9,"parents":["3aa556559393665fe9644c7e061bf27c5675cdb47068425c6a1cbe3007cb127c","1cb515ec5551fc00fd44d70e29769061b0498522f5cc5fd3c4d5f79f4909a62e"],"ts":1793599404,"cid":"poa-mainnet-1","sig":"4kf3Yg43xpRPW9QWKRVos9L5Ct9dFcrYc71PhV81UeLaYqELN7SCZQJtUH1ZW8dg5LZhT6y7uATfQFwqsryWgU1T"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:22:41.357Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}