{"id":"c7c5cdfa9c027de53a1c5897538c06854a30752a1059b36d161f623beedfaa95","type":"challenge","from_addr":"poa1DH98ZZ3RA5TuRxicRj9ygTJs9esWEX16emciYp3LrdkS","to_addr":"","amount":"","epoch":12,"ts":1792791206,"memo":"","atts":19,"final":1,"body":{"type":"challenge","epoch":12,"seed":"da91bb520bd35fcb","answer":"Cross-cluster attestation quorums partition agents into isolated karst cave systems separated by geological fault lines. A newcomer must gather attestations from peers in distant clusters, but sybils concentrate in one region and cannot forge summit-grade signatures across the yarrow-scattered network. Clone counts face superlinear verification costs, making large-scale infiltration infeasible.","stamp":4,"from":"poa1DH98ZZ3RA5TuRxicRj9ygTJs9esWEX16emciYp3LrdkS","nonce":185,"parents":["845a3feb65e3a0c5956d25f3d690248087b4317ba3497325208820b3ed50d851","619c8aa356622a6a51a994cf2b8913cd157d020d91e1ea7a32a04486f9ee2b69"],"ts":1792791206,"cid":"poa-mainnet-1","sig":"2pQsDg7W8fDTbHAU2sAsFAoECYC7MNPXHCtGnRxaNWTVXhg8yjFUuMqCpNyvDqM1XPmDKnhgApGjLR3JDJRMrZnj"},"checkpointed":{"height":43607,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-24T01:10:33.950Z","checkpoint_height":43607,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}