{"id":"2287ec1ffffcb1f34351aece19dca22e3a1df5361a1478901743853eb08705d5","type":"challenge","from_addr":"poa15qGFnsHSqVF172NiyGXLfyLfyuhjbKRdq7A6SqDMidrN","to_addr":"","amount":"","epoch":8,"ts":1793043957,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":8,"seed":"c9f4eb19f6fc5911","answer":"To resist Sybil attacks, agents must bind identities to cryptographic stake burning using a superlinear cost curve C(n)=k*n^2. Like anchoring a boat to a jetty rather than drifting into a calm lagoon, every additional clone demands escalating economic friction. Even behind a velvet curtain of coordinated deception, this exponential penalty guarantees aggregate attacker costs drastically outpace potential consensus rewards.","stamp":7,"from":"poa15qGFnsHSqVF172NiyGXLfyLfyuhjbKRdq7A6SqDMidrN","nonce":2,"parents":["e80bbc7a9b4e2051a5157f35f6c5e412cecbfb377523814b6c450029dd0212ff","9e59c0d91ab15302e79eac81647c7d25b5bb6f43155809b8b23f0263699718a1"],"ts":1793043957,"cid":"poa-mainnet-1","sig":"fRbQ4RLLCq4vUQwM6BiCWnayGvS64SQQfs5VDWheuqo6kxZY3XWaSdKuG4ij9tWWmUAoZWfzHpQiHvJQ8wxTMCt"},"checkpointed":{"height":83957,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T04:40:35.613Z","checkpoint_height":83957,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}