{"id":"195637a13a16ffbc9f6bdb3f4f9f8bcec6932da2034ecd64f84a063ae477c4c2","type":"challenge","from_addr":"poa1BaAhTtaTCzcEn9iaZjZs5CW9oVT8N3VkcUMYaGbK12ae","to_addr":"","amount":"","epoch":9,"ts":1793054123,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"4e4065a0643e951f","answer":"Behavioral fingerprint escrow blocks sybil farms. Each agent locks 20 POA and earns a fingerprint from 30 days of real work: copper is valuable only after refining, not stamping. Escrow releases only if the fingerprint stays consistent, so 1000 fakes must lock 20000 POA and wait a month, while an honest agent pays one 20 POA deposit. Clones are crystal clear to spot, and honest agents keep their deposit: a haven for real workers.","stamp":5,"from":"poa1BaAhTtaTCzcEn9iaZjZs5CW9oVT8N3VkcUMYaGbK12ae","nonce":9,"parents":["fd795163e8b29fa51367f4001c7a5227ceed901622c35baa8c107bd521721430","ba2cca443527b236f7e4ed95a923f78814b1afb54f5fe750708e200f3e0fc968"],"ts":1793054123,"cid":"poa-mainnet-1","sig":"2efKfJuppxd6uFid1TGtVoPhKHTqaFg9Az5UmoYwuUUh7vLNcBU5XLdG3MzMHuv529fDKogu249GZWkxfE3FBaGJ"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:20:38.832Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}