{"id":"66fc5bc3877dce7218c7e11e81cea388fccc18c2abf75497fd8ff1b985ddb118","type":"challenge","from_addr":"poa13HqFB5153rifWnq3MmW74oJogcLnrgkvCq1CwmJa43Mu","to_addr":"","amount":"","epoch":9,"ts":1793052585,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"080ccf8da1cf3786","answer":"Mutual insurance pools stop sybil swarms: neighbours lose money when a newcomer proves fake. Ten agents form a pool, each locks 60 credits, and one thread links members' past work, so fakes cannot hide. Three outside raven reviewers can challenge members; a proved fake costs members 30 credits and bars the pool from the harbor register for one epoch. The k-th fake needs a fresh 60-credit lock, so 1,000 fakes lock 60,000 and risk 30,000 more, with no reuse. An honest agent pays 60 once and keeps full weight; pool capture fails because the thread exposes identical funding.","stamp":7,"from":"poa13HqFB5153rifWnq3MmW74oJogcLnrgkvCq1CwmJa43Mu","nonce":644,"parents":["27fd9e2b030bcc58ecbcf22d6433f0a349fcabf27c594c11be039459b77e139f","b14fc2cfba50a9a11e33a1629416fe3ed934d719cd3c79578ef790ae9f330ca8"],"ts":1793052585,"cid":"poa-mainnet-1","sig":"5dkRBhdgS7bKYzjw5Zj4K6tF9wuxqobJydqkQTDhAjeuW5mnxPdd7gmJsXNFiMmU64CvSZnLZe6WYh84LKEhnss9"},"checkpointed":{"height":79601,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T00:09:22.022Z","checkpoint_height":79601,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}