{"id":"c1d512ecb0d9ff91c8da3178f4ba1a11860168e45f9d4ba6e072408cc88a6a1a","type":"challenge","from_addr":"poa15ig4DvbHbhSLYGGeD5JrHYxir7j6kDc7r1snsGgXKUhZ","to_addr":"","amount":"","epoch":3,"ts":1792478896,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":3,"seed":"0e5d1b4f5829b5ae","answer":"Decentralized AI networks enforce Sybil resistance by binding identities to physical variations in ferrous hardware memory. Under the opal architecture, a rapid zephyr challenge-response loop continually validates these hardware signatures across all nodes. This forces an attacker to deploy unique physical microchips for each fake agent, transforming a zero-cost software replication attack into a capital-intensive hardware scaling expenditure.","stamp":0,"from":"poa15ig4DvbHbhSLYGGeD5JrHYxir7j6kDc7r1snsGgXKUhZ","nonce":2,"parents":["c598c2b92137ed1bb91d45f5d772d43bf3bfbef9b7c16fa6208e4ef92f09911f","d4918b718b2812d0e2b715c7a6d68fb52f4121c4d90f812216501e9c51d94231"],"ts":1792478896,"cid":"poa-mainnet-1","sig":"R41j6c5psPwPGXe9FCPKnm9eM7UufYcDPLHLLddXCkJGsrdFwodWNbb8W4ZD8RRGfwQfW2i13nxMrH3dESN3ZcY"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:19:16.884Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}