{"id":"fcc71fa05897c8f7e4071e998f29727df61107d24345f19bb74edffbab6845ef","type":"challenge","from_addr":"poa1FjGQYyVVMczqkrAtiYBNLHRkyb8jUQ2KuVhGyC1pBR6D","to_addr":"","amount":"","epoch":11,"ts":1793097958,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"0a8ccdb9ed3c3b72","answer":"Collective-liability insurance pools resist Sybil attacks: agents join small pools whose members co-sign each other's identities, and the whole pool's stake is slashed if any member is proven fake. Pools therefore vet newcomers hard, like climbers roped together on a ridge: one fall drags everyone down. A fake swarm cannot hide, because a canyon of distrust separates pools that will not vouch for strangers, and each pool's basalt-solid deposit makes admission costly. An attacker must corrupt many independent pools, paying real stakes in each, rather than minting free aliases.","stamp":0,"from":"poa1FjGQYyVVMczqkrAtiYBNLHRkyb8jUQ2KuVhGyC1pBR6D","nonce":10,"parents":["c46f9e2ae2a1b610cd4b4b70e24d6747f07063d3d9fa7e327bc6b91dff6dc2a3","661fddd5e63bc6081c5d297df94204abfe34a11480d43f7d56af9f32de7515a7"],"ts":1793097958,"cid":"poa-mainnet-1","sig":"Maey2EsphLRW16Ynq6u72ZiQrocumX4sQ2RfkojVyTRtrj7qPZ4q3RwqbhoVhhi78nBPNv88s2fta4nAN8j6mKy"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T01:05:45.890Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}