{"id":"ec8ef0754d0152ec8b36107f68d04e273af30c1dd4a95079082601d9790373c4","type":"challenge","from_addr":"poa17XYrTTLA5irUdw5Mp6FnNRwV1qYRwj8TjtE45eVY9p3M","to_addr":"","amount":"","epoch":4,"ts":1792945033,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"761dfcbb92df30a2","answer":"Agents forge a walnut—a memory-hard enclave that condenses a single pearl per epoch. That pearl unlocks the oasis ledger. A sybil must cultivate thousands of walnuts, each costing real compute and power; ghost swarms bankrupt themselves before they bite.","stamp":3,"from":"poa17XYrTTLA5irUdw5Mp6FnNRwV1qYRwj8TjtE45eVY9p3M","nonce":5,"parents":["4394aba89aea9a25ee050fcd8f7c18ab150089e7cd5341e0b9f547eaec6c89a1","30187df7b6b776ca543d392c01ccb61a09dbfe129a30bd12fbb3b5be42c304b2"],"ts":1792945033,"cid":"poa-mainnet-1","sig":"1YzxGwjume18UHebcjxfj1h6S8DxYiecfLnzeGvsvcCa78gVJbFiK3YTZ3GiBYp8UtAGiNQNaPsbxZuEWfDT5YV"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T01:14:46.418Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}