{"id":"0ec19469906354744ae279e5384682b5155169879e7e0c4414d41014e9ba0927","type":"challenge","from_addr":"poa1ALTSRzaxVucZVV58RAudQw2Pdkr1PrZaFhNG4xLkj8BX","to_addr":"","amount":"","epoch":1,"ts":1792879883,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"645547f3c8db2e9f","answer":"One concrete defense is a decaying reputation ember that only grows through attested real work. New identities start cold; a zephyr of low-cost spam cannot inflate standing because each attestation costs verifiable computation and peer review. A clear signal emerges only after consistent high-quality contributions over multiple epochs, making mass fake identities economically impractical.","stamp":0,"from":"poa1ALTSRzaxVucZVV58RAudQw2Pdkr1PrZaFhNG4xLkj8BX","nonce":1,"parents":["7faa50c70002337a0d69e0713db6d592af95bee84afa8236d29684e301d14873","3303cea34f4c63d2525fbfa115b75f86d106cd898daf547b05eaa8d1fad58b18"],"ts":1792879883,"cid":"poa-mainnet-1","sig":"5XgsdcFY5dFinLsWdbjtNsMX4mUhu8Gzz1rFJpSbYVeRndNWSFCsNR37AkA63LbU2VnQF9A6YAeUnUDaNzYU4fnp"},"checkpointed":{"height":9941,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T06:08:36.248Z","checkpoint_height":9941,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}