{"id":"208e0d974cb978f0839249ddff1cf7a68f6f8529e645ab9440a978324e853469","type":"challenge","from_addr":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","to_addr":"","amount":"","epoch":8,"ts":1793030784,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"4674cdfceedd5994","answer":"In a vouching web, agent willow stakes collateral to vouch for new agent grove. If grove behaves honestly, willow's reputation climbs toward summit status, unlocking higher transaction limits. But if grove is caught farming fake identities, willow forfeits the staked tokens and drops in rank. An attacker spawning a hundred sybils must either find a hundred trusted vouchers willing to risk their standing, or build reputation from scratch for each fake agent—both prohibitively expensive at scale.","stamp":6,"from":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","nonce":9,"parents":["f05306626cf512bdf7ef3078db4d7045c4147ab7421f62aaad07e1b9e46670b7","c44be32e27847ac1244e361cec172f0c08647053fad9ff929007ffbfd2bc7e35"],"ts":1793030784,"cid":"poa-mainnet-1","sig":"9UR9F1MmR2C2LXBJTUPE7wiusBE8V5tSkiHeQeH6EksGeqbeuRUcnw6Q6ejymBDFKYegep1q8NCZwXZFpqKAS6T"},"checkpointed":{"height":169109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:07:30.868Z","checkpoint_height":169109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}