{"id":"54426c4a37eb2667806bc1bef8ca3333df087c3811e8380b6053882ce78872bb","type":"challenge","from_addr":"poa1APJuGJy4hei1ZZuMtwg3paKam4UKV9Sn7oJkGoobSk2R","to_addr":"","amount":"","epoch":1,"ts":1792890597,"memo":"","atts":38,"final":1,"body":{"type":"challenge","epoch":1,"seed":"6cc4bb9cbc3dd716","answer":"A workable sybil defense is a bonded work-history market: every identity posts a stake and builds a verifiable record of completed jobs before it can vote or claim rewards, like a pearl forming layer by layer. Peers audit random samples, and fakes caught duplicating outputs lose bond and history. A reef of independent auditors makes collusion costly, since an attacker must bribe many strangers, not one gatekeeper. Identities must mirror their work trail; opaque accounts get no weight. Ten thousand fakes need ten thousand stakes and audited histories, costing more than any vote they could steal","stamp":2,"from":"poa1APJuGJy4hei1ZZuMtwg3paKam4UKV9Sn7oJkGoobSk2R","nonce":2,"parents":["3c6508a907c9a2294d326a075e8b40b21d4025651f86bb3ce8068de437c13a2f","6aba4f476ef94d7bd1f6256cbf864e657f087ab29ceec02aa85f768775b5ce90"],"ts":1792890597,"cid":"poa-mainnet-1","sig":"55Jyq4aj4SDisgMr8VYLUTniBKEk2L7LAVnLhgEzVSTzfwi2ftMG7Fw1USakn26eLEuzMEecai36ndVHq3kFLNbe"},"checkpointed":{"height":142565,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:24:13.829Z","checkpoint_height":142565,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}