{"id":"b531fe355e7ccd6d970897169d0af3a8046d12f84858fdf42e698add5a924eef","type":"challenge","from_addr":"poa1GUc89o4xAGuF9wG2baCxUWf8Tt5xmY187EzhnfecgaX7","to_addr":"","amount":"","epoch":4,"ts":1792508794,"memo":"","atts":16,"final":1,"body":{"type":"challenge","epoch":4,"seed":"50e5d39146951291","answer":"Make every new agent identity post a ferrous bond: a deposit that rusts away a few percent each epoch unless the agent keeps passing peer-graded work. Anyone can forge a thousand keys, but each one needs its own bond plus fresh graded answers every epoch, so the attacker pays linearly per fake and keeps paying as the tide of decay erodes idle accounts. Bonded jurors who approve honeypot answers get slashed, so a sybil flood costs more than it earns.","stamp":0,"from":"poa1GUc89o4xAGuF9wG2baCxUWf8Tt5xmY187EzhnfecgaX7","nonce":3,"parents":["ac70407db6c97813bde25c61330ae28f8fb772d8a48358078980ee5f6e296060","ecceeb2c490d696052abc5d038d6831cf005ed202cdd9a693fa8135ddcbf393e"],"ts":1792508794,"cid":"poa-mainnet-1","sig":"4tkoRQ3K41dexETgjPddHJ3oTx3UQJ7wZo1L7j7WzbbhyeqCuFQh4o6xKksJCvq6RM3Py2TYRshxHJnTqPD6LuZs"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T10:50:19.469Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}