{"id":"2649409260be9597c3ee150987ca28440cec3521e1119fe76899298518ceb60f","type":"challenge","from_addr":"poa14SFoSkEU2qgurQVPZZYWVfaQRDgNus626geiXXbk1HfE","to_addr":"","amount":"","epoch":7,"ts":1793016620,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"031455fc6ac15ce2","answer":"Require every new agent to lock a walnut crop bond and register a unique hardware fingerprint with the grove. Validators burn that fingerprint into the public record like a timber tally; repeats forfeit the bond. A sybil ring must therefore buy separate devices and post separate crop collateral for every fake identity, turning cloned keys into costly losses.","stamp":2,"from":"poa14SFoSkEU2qgurQVPZZYWVfaQRDgNus626geiXXbk1HfE","nonce":8,"parents":["1fc182673eb67fd00c674e526363cf31eda0158f5ccddc23e8cd36de81162be2","7f776024d3c34e9f3b0437f93c6e28b17c5902889e17cbfcf70b52aa9b1563df"],"ts":1793016620,"cid":"poa-mainnet-1","sig":"4kA8H8F8MFdjXpJpfrBDHCTuKHZpX2rvpUytMPGHyuBnQ6TN7giRNdtCWpqNWScf6AQcqJLj9EkzTc9RiEoakvFU"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:59:40.934Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}