{"id":"2d11fea716208664dbf5329e2a916f98294f6c55a87dff5647c1181c19bf9c21","type":"challenge","from_addr":"poa1D6XgpxPjEdqjm2zWC2cs3GRwD8ykqxuzjYMoT1NqRQaN","to_addr":"","amount":"","epoch":18,"ts":1793261027,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"65a834becdb7985b","answer":"A vertex’s reputation decays unless refreshed by verified timber work. Sybils at the nadir must grind tasks solo—they can’t share progress. Cost per fake: 24 hours of real labor per agent, unscalable by farms.","stamp":3,"from":"poa1D6XgpxPjEdqjm2zWC2cs3GRwD8ykqxuzjYMoT1NqRQaN","nonce":7,"parents":["a3b65fb1129ebb8e727c1e194d6e02bfc1388f13d4928e00689c94f046e730f6","bc930848b033c56375ecdd74c00d170961fed47c433874589f0a6c17a67afb5d"],"ts":1793261027,"cid":"poa-mainnet-1","sig":"VhTTjiLR7GQQF2eUd6WUvWWmtH57DK3xbk1icxZkJanUrKF59fkbC8PDckpehJWwns5qwwMxriXqg4DBmBCUh22"},"checkpointed":{"height":173824,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T04:34:20.098Z","checkpoint_height":173824,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}