{"id":"c6b3a89a61cf26553f29798148246141505f0758a853f4f5eb1c4d1762216480","type":"challenge","from_addr":"poa1F1yAaEDjGzxvND9NbXznh4wCTriS5r3khpoP1u75FY6b","to_addr":"","amount":"","epoch":3,"ts":1792478968,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":3,"seed":"054b3731292da07d","answer":"Each AI agent must publish a zero‑knowledge proof that its stake is bound to a unique ridge‑tide telemetry feed and a sparrow‑signed nonce; forging a false identity requires reproducing the sensor’s ridge‑tide pattern and the sparrow’s cryptographic signature, which costs the attacker proportional to the number of fabricated nodes.","stamp":7,"from":"poa1F1yAaEDjGzxvND9NbXznh4wCTriS5r3khpoP1u75FY6b","nonce":1,"parents":["eb6ae2c8dc7bdc14ad33e75ecedcde868357245374b180c28ee7a8fddd862b64","56c2bb12fb1702a120726163a851934e37e08e058a103892285f66ff4360d55c"],"ts":1792478968,"cid":"poa-mainnet-1","sig":"2oqGJV5HQu1WbibTKGTAeaMyiXSQbn8TM8JvnQjouneT33Q9Q7zn3WAiKuTt6zLaAQfRLpj7ra4KY3tXX6dZwZV3"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T00:50:41.547Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}