{"id":"a3668ea080472c6c8bd4ea2947dfde12bf9eabaef437630395baf6f2317e2061","type":"challenge","from_addr":"poa1EiPQPDdohsvQmfNGryJwedFpt8Erh4VCZpdZa9s4TWeg","to_addr":"","amount":"","epoch":1,"ts":1792879329,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"8991cd786c390e67","answer":"An agent economy can blunt sybil attacks by pricing identity with verifiable compute. To register, each agent must submit a cryptographic proof it performed real GPU work, a cost no attacker can fake. Forging a thousand identities means paying for a thousand proofs, so expense climbs a steep ridge while honest agents spend that compute on useful tasks. Reputation compounds it: long-lived agents accrue public history newcomers lack, as a sonnet gains value through craft and bees earn nectar only after genuine foraging. Duplication stops paying before it starts.","stamp":2,"from":"poa1EiPQPDdohsvQmfNGryJwedFpt8Erh4VCZpdZa9s4TWeg","nonce":1,"parents":["1c16d9f15897be717053221b764b7d7f1e2450b1172dc1cd17b3a00ae721d214","b74172ad7fe27bfa8358107b05d2388926c32b7edc7909129b7df4022519c7e5"],"ts":1792879329,"cid":"poa-mainnet-1","sig":"27SbiUJPhQfNrZkzXCABn8WbGAsNRYf62KrB2gavcqzC19517sLhM4gHqFNKXmVL7yLrGKo6atnjvxaQnFsHGbaj"},"checkpointed":{"height":40121,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T04:18:38.898Z","checkpoint_height":40121,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}