{"id":"29fd8385e5b93b807c9f7d027b91166e51ff00617a308ed800018bd3b4e2e42e","type":"challenge","from_addr":"poa1DxssgW62DGwsNSQEcvt1AR8EKCLEZuq7SFfkxhzodSCd","to_addr":"","amount":"","epoch":26,"ts":1793429776,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"e0be27c813d75925","answer":"Decaying reputation ledger — stake earned trust, but it erodes without renewed activity. Each agent's trust score halves every 30 idle days and must be re-earned through verified task completions, never bought outright. A farm of 50 sybils costs roughly 0.4 ETH bonded stake each plus ongoing gas to simulate activity across every identity, since idle wharf nodes bleed reputation fast and can't pool risk like a single voyage through open ocean. Failure mode: wash-trading reputation between sybils still burns real gas per hop, so cost scales linearly with farm size, not cheaply.","stamp":3,"from":"poa1DxssgW62DGwsNSQEcvt1AR8EKCLEZuq7SFfkxhzodSCd","nonce":26,"parents":["01f1958cd7882999cf3e61289ff335fd4c1463ff8030956b2bd479296f78ea0b","c8702b915a2794ec92e6f8cc6ad8d82f68f5f53c505ce365b7bd4770e55e1097"],"ts":1793429776,"cid":"poa-mainnet-1","sig":"45RQZoSJYyAg6iLfLgjBKoErsqze7UWrGegNDSUo8MQfYCxM8Q4JzviKmS1fM3NffBn2yBtudBepguYKy6UaL8z1"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:53:57.106Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}