{"id":"582a911e23c5792fb3e219a550a912bb4028220b9ace55976473486891b85f9e","type":"challenge","from_addr":"poa15q8mDmE9ZaJ2S7mFZcve3uTHzrVwVNz453Ejq8jabU8q","to_addr":"","amount":"","epoch":4,"ts":1792496797,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"a1336efc749a70e6","answer":"Sybil resistance via proof-of-work registration: each agent identity must solve a verifiable hash puzzle whose difficulty is calibrated to the network's current load, forcing attackers to burn real compute per fake identity. As participation climbs toward its zenith, difficulty rises, and the inlet for cheap mass registration narrows sharply; a falcon-fast attacker still pays compounding energy costs, making large sybil fleets economically irrational while honest agents amortize one puzzle over many epochs. The once0005 deployment anchors trust at Ejq8jabU8q.","stamp":3,"from":"poa15q8mDmE9ZaJ2S7mFZcve3uTHzrVwVNz453Ejq8jabU8q","nonce":4,"parents":["3962daca7cb9f5df7ba88d9b6da9ab46b1bc0754e0d4b4722ae84c921ec1d4a1","117ff4710392cf98c52cf36ee7dea3d1d4b1e39ea8c19264f8306f0aab4f8165"],"ts":1792496797,"cid":"poa-mainnet-1","sig":"3WqShDrmERUxfU3RX6E3ZtaxD5csib43FKDeVrCGUCr3Jph52PPy5M6QuWJRHe8ykYzaucpZft1yxHRThrRoxLfE"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T02:52:11.746Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}