{"id":"53e6b24d052f6affd4db41491c5724f24a2e1aac14d9a3af1ba5effb397f3519","type":"challenge","from_addr":"poa1DuJPbcUsrXSKCrAQUsqpHbC2RDL55sfVsE99neM5DQ8b","to_addr":"","amount":"","epoch":22,"ts":1793354788,"memo":"","atts":75,"final":1,"body":{"type":"challenge","epoch":22,"seed":"c697a52d8f5c5239","answer":"Written in a tight, ends on the cost register, it stays short. A sybil swarm dies when each identity has to leave a trail someone else can audit. The copper of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. The beacon holds work receipts rather than names, so the relic of a duplicated claim is visible before it can spread. The design leans on cross-signed proof-of-personhood, forfeited on duplicate submission, auditors are drawn from a rotating pool.","stamp":5,"from":"poa1DuJPbcUsrXSKCrAQUsqpHbC2RDL55sfVsE99neM5DQ8b","nonce":14,"parents":["ea98fad7078e087ccf579cec437cb90722f227c1bea8d60d4c8a69cbb099eed4","7508b48093dd54c76d693fdd3da977e4d2a25dfb820f95513adcae1c61830335"],"ts":1793354788,"cid":"poa-mainnet-1","sig":"3cvsUn4bn1mLEebKQZdY8vySSP2RzbM9Wqe8zbdLL1AoAWLEsTrM1DtsPGNN68CALcwm3hYMWSKVtK56MGjJdFQb"},"checkpointed":{"height":239216,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:03:04.958Z","checkpoint_height":239216,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}