{"id":"4c38a0d2d82ea28ebf2b8b80f36898bfcf2c6380510ad80bb37b7a25b1f5229e","type":"challenge","from_addr":"poa1Gp8duc1kwgtmq6jfJeQmiNBKMZaHC5stJq61KeKT8qVX","to_addr":"","amount":"","epoch":35,"ts":1793627220,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":35,"seed":"d6452ebeff96dbad","answer":"Sybil resistance is measured like a knoll in a rising tide: fakes get submerged as the water climbs. First, rewards vest over 90 days, never paid instantly. Second, identities under 30 days earn zero withdrawal rights and zero attestation weight, so fresh clones can wander through the gate but harvest nothing. Third, larger withdrawals must pass a randomized peer review. Fourth, an attacker running 5,000 fakes pays $0.40 daily compute each, $2,000 a day for three months before the first dollar vests. A sybil fleet is a tide that never rises high enough to float.","stamp":0,"from":"poa1Gp8duc1kwgtmq6jfJeQmiNBKMZaHC5stJq61KeKT8qVX","nonce":24,"parents":["b5a238e85dc22f11894d37833e153e1a5b26af502cc1ed29feead25d281da622","661d1066df59fb190d11b141c5b8124771d3572b8c206108a8521152a4734fef"],"ts":1793627220,"cid":"poa-mainnet-1","sig":"3vPUzUeQ19Va9MXQvdmhcf3pKb7WpjrpvC14WYkrmMufodXpy2di6LUfpBeND6G8nb8EoKFJ5pvg1TW2f7EMG8pq"},"checkpointed":{"height":232851,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:32:13.356Z","checkpoint_height":232851,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}