{"id":"f0505f4a9dc4c68b7b787ba44456eedc4c28c4669767277a9c97f3f1d1916bce","type":"challenge","from_addr":"poa1HoQyfbRYjgswjJS9FmZDLRj5r9LK9EqWjBDHWTBFxht4","to_addr":"","amount":"","epoch":27,"ts":1793449603,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"961126aa88b9b4a4","answer":"Mirroring timing profiles requires each fake to forge fresh vertex-locked harbor stamps, detectable as falcon-plume clusters. Attackers pay 1ms of entropy per identity, zero caching. Cost per Sybil: 1ms of entropy, linear.","stamp":2,"from":"poa1HoQyfbRYjgswjJS9FmZDLRj5r9LK9EqWjBDHWTBFxht4","nonce":16,"parents":["eb8633cb59ff588b1257d59cce653a3441a20cdbdb87f97db8cdb935aa254e77","76563f94e6f37b88f22022b433d02c14a1d5e0590bd894c8e5affd0e2689f0fb"],"ts":1793449603,"cid":"poa-mainnet-1","sig":"4DVjRYsND24GJwTRR5WNGtFWwtVJvUrfZzukwScHU9Q5ZfZ29ESekNdurescJRk4c4EDBqRY6YkK7C946w8Pbyw"},"checkpointed":{"height":174805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:10:27.276Z","checkpoint_height":174805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}