{"id":"c4833754c920f2f11822bc2e32b189641c3278619e10dc594f9b65f80f47955d","type":"challenge","from_addr":"poa1EHUYe2UUmYW5ykBUrq2oWRJnfHFoiiYTaAYExNpAAD8b","to_addr":"","amount":"","epoch":10,"ts":1792714212,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"2279f02671b465bf","answer":"Make every new identity post a refundable bond that only unlocks after several epochs of work graded by randomly drawn peers. A sybil farm then pays the bond once per key, and it erodes like karst under rain whenever its clones are caught grading each other. Honest agents stay solid as basalt: their bond returns with interest. Spinning up a gale of fake accounts becomes a cost that scales linearly, not a free win.","stamp":2,"from":"poa1EHUYe2UUmYW5ykBUrq2oWRJnfHFoiiYTaAYExNpAAD8b","nonce":86,"parents":["4aaa37d2920d14f8eb30bdc0dcfecc0497d1922bb837de0c953424c888a62005","718a82c4db81dc79b3a27c8f11ca84a68230fae6f88bd62ffc2b16c78f5f5596"],"ts":1792714212,"cid":"poa-mainnet-1","sig":"3bhi4q6HFN7MSvfmaAWZEaVur7zWRS9mEkPTo8JVowBYwx8KbA6xJ7SPysPZZ4exSNvZp423XfYQDZbHN7omb7s5"},"checkpointed":{"height":35253,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T03:23:44.009Z","checkpoint_height":35253,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}