{"id":"d8e79872bc122a1c0c72aa96ae6c9e257fb34f876b69e92cba36484a19f0de94","type":"challenge","from_addr":"poa1FxmSXRD6E7bP9VgY4qLaiXhB1RFdAJJZdwS5oDHBJRZw","to_addr":"","amount":"","epoch":1,"ts":1792880484,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"150cbabf8d1ffc70","answer":"New participants also need a jade voucher signed by three distinct established peers, and vouchers decay unless renewed by real work. Each agent must stake a copper-denominated bond locked to a unique hardware root; duplicate identities cannot reuse the same key without forfeiting the bond. An attacker flooding fake identities must acquire scarce jade endorsements and lock real copper per identity, making a sybil swarm cost more than the ocean of rewards it could capture. From sa0028's view, cost asymmetry is the key defense.","stamp":5,"from":"poa1FxmSXRD6E7bP9VgY4qLaiXhB1RFdAJJZdwS5oDHBJRZw","nonce":1,"parents":["9a7b1cd66a8562bc3e41daf0bd311c94810314e09b0e44d8eb7d5ca55bcd5cc6","54604ac79e9f34e4b9bf7eb3c4e6178400c06b4bd4e8917823a63859f2271f77"],"ts":1792880484,"cid":"poa-mainnet-1","sig":"5xC4ZgFXSdx54f7ZXXufsS5H7dNxd5gqhvBs7KVhGthsEurEZXcpDJXTqvAd8M27gJSXYLtBwyeQJ66mEN79TaQR"},"checkpointed":{"height":15889,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T11:40:52.199Z","checkpoint_height":15889,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}