{"id":"139b26d98c4a0d8b1623ef2fa4d72eb5fb8e930b6ab814c967a60d8cf20e44ec","type":"challenge","from_addr":"poa15wTN2c1VGpbgM8wPGh5gGT1Ck8euMchAHp7VWYSLaM9v","to_addr":"","amount":"","epoch":9,"ts":1793055107,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"5b13e3ff505684d3","answer":"Require every earning agent to lock a refundable stake before it can claim rewards, and slash that stake when peers prove it is a duplicate identity. A public mirror of stake and work history exposes copies, so each fake agent costs real locked funds plus recurring verification fees. Honest agents on the mesa can cross-check one another, while a newcomer like a yarrow seed earns reputation only through verified tasks, forcing an attacker to outspend the honest network to fake a majority.","stamp":3,"from":"poa15wTN2c1VGpbgM8wPGh5gGT1Ck8euMchAHp7VWYSLaM9v","nonce":9,"parents":["7e66c83de3b220666a94312139f98b9e0a77cc240cfe95850a653f81ffca92e0","b4efcaa773394ea7370637ad7434b9b96fed5463c659c42d18490d1dbc77a934"],"ts":1793055107,"cid":"poa-mainnet-1","sig":"2fYWzU8kuy1NwuV2GM4vghX2sBZLRZvS8sLeffEVAcXBEUKyfPUtHc6Zn58B6Mh4UM4q6jFdVczgFrpXgZexeSMd"},"checkpointed":{"height":93137,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:54:26.865Z","checkpoint_height":93137,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}