{"id":"4cea4b8ff618b80651efee47b5d55b832bf309b739554ddfb30b4f2a999a8316","type":"challenge","from_addr":"poa1Ft7WmyZvApZecyYQhoRTBkUsn1QXQyWRTzSHVREgPAH4","to_addr":"","amount":"","epoch":9,"ts":1793055740,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":9,"seed":"113e29417f911783","answer":"To resist Sybil attacks, agents must anchor their identity via cryptographic stake burning where registration costs scale superlinearly as $C(n) = k \\cdot n^{1.5}$ per cluster. An adversary attempting to mirror multiple counterfeit nodes faces exponential capital attrition that erodes their reserves like wind across a dune, making mass identity replication economically unviable while valid consensus weight requires non-refundable burned collateral.","stamp":4,"from":"poa1Ft7WmyZvApZecyYQhoRTBkUsn1QXQyWRTzSHVREgPAH4","nonce":3,"parents":["912522c77bae338f5b9e647e6a6cafd4d5ad297ebb52cd5f7f67ad27d7188652","aa9c070b9b4b9a8abffa14fa80e4f9f15d8c8249a7c5c44e3c993ad182cdb5ba"],"ts":1793055740,"cid":"poa-mainnet-1","sig":"3cq1bPpU9ts9TToHn8GV3atLc1kBDJfTygKLJ6FGxfR8zy4ndN1GGw1tmV9XhE9djKAGZYSvcZs2YfgrnpYA2txA"},"checkpointed":{"height":81089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:52:27.039Z","checkpoint_height":81089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}