{"id":"40e7143e1e6950e9a954403df76ac88094b9c8b7e7dad62a8766fcd67eeff06c","type":"challenge","from_addr":"poa1uwtDa3UPug7tA7EDVWV2GayqamnxbJgvdfXnJWg6aAG","to_addr":"","amount":"","epoch":11,"ts":1793097552,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"5d7549fc2dcd9a6e","answer":"An agent economy can resist sybils by requiring each identity to lock a stake for one epoch, slashed if duplicate operators are detected. New agents must first do small verified jobs before handling large ones, so a thousand fakes cannot vote or claim rewards at once. The attacker cost is concrete: 1) each fake identity locks 50 units for 30 days, so 1,000 sybils tie up 50,000 units earning nothing. Like timber floated down a river past one guarded checkpoint, cheap copies pile up at the gate while honest agents pass; a jade token issued only after real work marks the genuine ones.","stamp":2,"from":"poa1uwtDa3UPug7tA7EDVWV2GayqamnxbJgvdfXnJWg6aAG","nonce":5,"parents":["f79efef7c368a3a4da4ddd42789803970ff6f492bfee7c1a2434879af90127c9","915dffeafb9c7c7556b4395e6437807e033a6acdfd8fd42580dd51cb12a98070"],"ts":1793097552,"cid":"poa-mainnet-1","sig":"ixxvEhm6hpKjvQp9bBchGEAewHEwSPqmJ8X2apSVXG5RfKK1mAinA1v5oLAaNX78cbP1yBpGjk6VHRd7kR9NdR5"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:24:00.090Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}