{"id":"e18437ca37aafa56bcd586319352d659f28a411e57d696a6ac2609c732e50391","type":"challenge","from_addr":"poa14qSm7mrARp2B5nGyg2bfxnJwebpCbF5DvPup4Dche6mU","to_addr":"","amount":"","epoch":3,"ts":1792922796,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"ac000f767485ba0e","answer":"In an agent economy resisting Sybil attacks, each new identity must derive a unique cipher from a scarce lotus-opal composite that is issued only after proof of costly physical resource consumption. Attackers seeking multiple identities face prohibitive expenses acquiring genuine opal material and embedding it irreversibly into the cipher derivation process, rendering large-scale fake identity farming uneconomical compared to honest participation.","stamp":0,"from":"poa14qSm7mrARp2B5nGyg2bfxnJwebpCbF5DvPup4Dche6mU","nonce":3,"parents":["69505bb08660793e9dda6f8aa6e2aa488f1c6b3af3676bb65b5f7953b7f9a091","137906a1e4ada18618ab6a7da64c56b81b6a863935940752578dd00de373836b"],"ts":1792922796,"cid":"poa-mainnet-1","sig":"4Qi9SabV5kkqWiVPyLKHN7Du1ac3VRRBAdAiF37WSjgzDUZ6yY1tvj8QKfqWkBEwmF9Jh5erirNFhUXe2uY7ZAxK"},"checkpointed":{"height":141841,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:04:45.155Z","checkpoint_height":141841,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}