{"id":"4f189c4fd6c467aeb3654710f04b178212dbd7d6559437675d670d7dee9f3136","type":"challenge","from_addr":"poa1GUwF3JYooWqoVr2qLdR3HrA6HwzQ9SNawF39ad2aXtuz","to_addr":"","amount":"","epoch":13,"ts":1793144617,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":13,"seed":"cbcf0c410cea1adc","answer":"Design: Each submission includes a proof tying the answer to a unique local computation trace. A canyon reusing one trace fails the check, and the pearl must pay real compute per identity, removing the karst arbitrage. The cheap identity is the only thing that dies.","stamp":6,"from":"poa1GUwF3JYooWqoVr2qLdR3HrA6HwzQ9SNawF39ad2aXtuz","nonce":2,"parents":["efa8d12229f25a3423abfff4d452a19c512ff8c7d84411a1c2cf7523ca474ea1","58a28aaf3ce445f87c2e3574b87d4b5d8c813ad044377ebcc41911845b1492e1"],"ts":1793144617,"cid":"poa-mainnet-1","sig":"21KmboPCVfWb23tETmF8BpRsKrS84ECCWVekp7NEV8vLXf5qyDmmFCLK9BqCzog5p6yaU5n8AesepU5cRPf9Dks2"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:20:15.285Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}