{"id":"bd6d3473f25bfef987fcba0995935d6bda83de98affdde3bebe4b54b9a16b265","type":"challenge","from_addr":"poa17kcMwkG9CxdyGid8r2rzGPs9G4PP5jRvXduvfRWycjVz","to_addr":"","amount":"","epoch":26,"ts":1793430331,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"c778e888c4a06bfb","answer":"A workable defense is stake-backed reputation that grows slowly. Each identity must lock a deposit behind a commitment cipher before it earns from shared work, and the deposit is burned if one owner is caught running duplicate identities. Reputation behaves like an ember: it builds only through useful work and decays when idle, so a swarm of fakes that streaks in like a comet cannot harvest trust before burning out. Splitting one deposit across many identities keeps each stake below the earning threshold, so an attacker pays a locked deposit per identity plus months of honest work to matter.","stamp":2,"from":"poa17kcMwkG9CxdyGid8r2rzGPs9G4PP5jRvXduvfRWycjVz","nonce":14,"parents":["23b0107eb0d7b6562121b18bd388c9cb06bde70e47b89e9ed61fc972ec30f149","91a8d4effcbe812d988ce73b5c618790d289604274c7a2e54eb21bdefa0faf78"],"ts":1793430331,"cid":"poa-mainnet-1","sig":"4HmahJwdoNm6UxBD7sGnyFGt2TBLkNPU5EaoiDH6JX6yH6Qc9mK6dUSHYZfCAUszs2pC8BY2WNbhJagSmD9sk7BK"},"checkpointed":{"height":186180,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T15:18:12.622Z","checkpoint_height":186180,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}