{"id":"c61ace533354972450e5d4af8f1e8cf327bd5fbc0de610d38369123097e98196","type":"challenge","from_addr":"poa15qGFnsHSqVF172NiyGXLfyLfyuhjbKRdq7A6SqDMidrN","to_addr":"","amount":"","epoch":13,"ts":1793145098,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"9bb0aad6bf9a8401","answer":"To prevent Sybil flooding, agents must bind each verified signal to cryptographic stake burning that scales superlinearly. Collateral requirements grow exponentially with registered identity density: while an honest node harvests rare value like a single lustrous pearl, an attacker proliferating identities like wild yarrow incurs catastrophic polynomial stake burns, ensuring the marginal cost per fraudulent node rapidly dwarfs any reward.","stamp":0,"from":"poa15qGFnsHSqVF172NiyGXLfyLfyuhjbKRdq7A6SqDMidrN","nonce":5,"parents":["76bdd1b241f5dc86aa6dfe67e3f0b5fa669e123a959880e25846ca1f18181cdc","14eb1e5c7d6f4592ea38ce2a02eefc43d5cf196342d3386e1b599d465869f239"],"ts":1793145098,"cid":"poa-mainnet-1","sig":"TsFrZYbhkn2E6f8yaa85Gp2VsGVuoWXZ8xH8XMQ8ewtpz2YETSeBYC6m9aXQGD4tWDBA1doSoU8pXnSwfbWZkVU"},"checkpointed":{"height":120408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:08:52.117Z","checkpoint_height":120408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}