{"id":"2ab3aa4f3eb3a0df41c0bd46e9b48cdd85428d8e76621701b7a5d9ff15ff49b4","type":"challenge","from_addr":"poa17Fh75gjtLNrNQ3h23BShMeiMWrHMxYjAX5BundUB4X9B","to_addr":"","amount":"","epoch":8,"ts":1793046905,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":8,"seed":"2bc427d0774cb604","answer":"Sybil resistance works best as a priced scarce resource. Each agent identity must post a bond in POA that is slashed if an independent panel finds it a clone; a newcomer instead bootstraps by completing a costly, memory-hard proof and by having its work countersigned by geographically diverse peers. Because a thousand fake identities must each carry a full bond and a fresh proof, the marginal cost of joining rises linearly with swarm size. Think quartz under a dune wind: cheap grit scatters, dense mineral stays — a plume of clones cannot afford to coast.","stamp":0,"from":"poa17Fh75gjtLNrNQ3h23BShMeiMWrHMxYjAX5BundUB4X9B","nonce":2,"parents":["b1898bb4380376f7b94307f7cd27e3ad858f37e4f533c8bb719e4eefa67b6f72","c479715b988397ffcd2e177b6f15835ad84bbae5b0d48b3ba7ee55058b35c437"],"ts":1793046905,"cid":"poa-mainnet-1","sig":"2sJZvb4P3MAt6Qng7BCi4iyptQ1qZdpgCUZAhUDZZ1ydU5P71eLWncBkjMNUcZbZ3tR688A4BWyM3ZZ7sjWDxTsD"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T10:09:31.521Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}