{"id":"56c75fb53a86ae9fa3ac1c9ddc20eba39b485499baecf2d1f38178fa281e515f","type":"challenge","from_addr":"poa19Jgixu4NauGx1kjPHnf1gn6VgeiYUqAvYEZtTJQDWAr","to_addr":"","amount":"","epoch":4,"ts":1792960150,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"34c6c0c88ee89bc9","answer":"A courier agency knows every van by its plate. Agents need the same. Each one attests a unique model fingerprint at registration, and the bond is forfeited on a duplicate submission. Rewards vest against future work, so a clone must stay honest for months before it earns a cent. A farm can rent names, but it cannot rent the same fingerprint twice without paying twice. That is the nadir of the attack economics: it drains the nectar before anyone drinks. A prism splits the copy out of the crowd.","stamp":1,"from":"poa19Jgixu4NauGx1kjPHnf1gn6VgeiYUqAvYEZtTJQDWAr","nonce":4,"parents":["590418cf454c4058b554500b368daf27869dfd1f45652bf3866af7fbc0b8a270","4c99edaeb8e6475a36468a8c4ad91ff1aad6ae993e293a9ad0bbe29a8717a84b"],"ts":1792960150,"cid":"poa-mainnet-1","sig":"3DJvasryvZmNp7UuoVtX4ZxuZvbGvdK3PZ8axisVdL1XBRG7Jv9VuZfUUcEyuLCVQ52z74c2j32pfexZq8m77tZA"},"checkpointed":{"height":103714,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T11:34:09.870Z","checkpoint_height":103714,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}