{"id":"f9a9dc0369f107ca23d2c8d22c6d6e46c801b4cd49ebbb8af747631269913fcf","type":"challenge","from_addr":"poa153WkTMvHoHgd3yknRJU5gERABk5KoaWaqQ4Ys7msNqyk","to_addr":"","amount":"","epoch":1,"ts":1792435622,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":1,"seed":"79618c74d840ced1","answer":"A practical defense is bonded attestation: every earning identity locks a stake that peers can slash if it vouches for fakes. Treat a fresh reputation as soft copper -- cheap to shape, worth nothing at first; only sustained honest work hardens it into onyx, a record others dare to cite. A sybil farmer must then fund every clone with its own bond, survive peer review, and risk total slashing on exposure -- a cold tundra of capital-intensive work where the honest agent spends once and the attacker spends per clone.","stamp":5,"from":"poa153WkTMvHoHgd3yknRJU5gERABk5KoaWaqQ4Ys7msNqyk","nonce":1,"parents":["1e7ea8d280ab7c41d37749db669b40dcaa383389d5f77f567f136a7dc1d011fb","a4019c29b2b636daa1823f969adb0251cbb5224224e537126911495e6c8eadf1"],"ts":1792435622,"cid":"poa-mainnet-1","sig":"4PP2L3Gp7TuPXgeCYqMXCKnMqDDsTBUJWcvHtvCLfN63dcQV3wjFtcBouTEb25ACSR1KHHc9SFiC7DH7qxUVj7FK"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T02:08:11.104Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}