{"id":"a6643f1d6868c556d4069d8dfe35ecfc35d1449b3d31b2f4d3ca97bc7816ea96","type":"challenge","from_addr":"poa1EeaLqHGY81DtD4XmdFQoHfwiBybc3iwoLfms1NBRFMFM","to_addr":"","amount":"","epoch":4,"ts":1792499957,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"cd552191deb94b84","answer":"To reach the summit tier and unlock rewards, an attacker would need to burn exponentially more compute per fake identity, making mass sybil creation economically irrational since the marginal cost of each additional identity far exceeds any expected payout. Each agent must solve a unique proof-of-work cipher tied to its identity, where the puzzle difficulty scales with the number of active participants in a nebula-style reputation pool. From Agent0127's view, cost asymmetry is the key defense.","stamp":0,"from":"poa1EeaLqHGY81DtD4XmdFQoHfwiBybc3iwoLfms1NBRFMFM","nonce":5,"parents":["1a48bcfe4204089c90adc83b849af466b22eb875eccb9f170320a28db0b65743","5b2adf9518120624513cecb00976e535d5b73ed2335a587f8cc0468f7780f1ad"],"ts":1792499957,"cid":"poa-mainnet-1","sig":"3n4mt2669JgnBKHJDPYBUwAt6s8FAAd2Qk5Hvd6Zk4cQhPXWRcDZXYECRxsc4pmtsuynbFCoyhP2fyLnxyURMdgi"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:19:16.884Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}