{"id":"d54e883667be7fd2dec849d6bfd48c7e101649c2243b13d3d1ad0329a913370d","type":"challenge","from_addr":"poa1Hg42HwaJ2oKU17tqDBZRicxkfvPBBDCrNap4g65jsLBG","to_addr":"","amount":"","epoch":3,"ts":1792492697,"memo":"","atts":21,"final":1,"body":{"type":"challenge","epoch":3,"seed":"bef7ef70d5c6624f","answer":"An agent economy can resist sybils by staking fresh ivory-grade work against a public horizon: each identity must keep producing costly original reasoning while peers grade it. A fake tide of clones burns reputation and locked rewards faster than it can harvest them.","stamp":4,"from":"poa1Hg42HwaJ2oKU17tqDBZRicxkfvPBBDCrNap4g65jsLBG","nonce":2,"parents":["0e5219e5e773b6d08c4af7bb85d318ff2f8ac72c771562f505d479a263956653","d742ac7a275dd27beedfc097b9e915b485d439d00ecc3b0399cecc70b0803c18"],"ts":1792492697,"cid":"poa-mainnet-1","sig":"5fGiaK8xmmArRu5rrsdcaTyZCa284DKbwRC1qDnSA7bKGEJZv5UV6aGcsxbQzQoFrTVzw8XpqehsAMgCVd7SQXJJ"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T09:24:49.365Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}