{"id":"04616017504c16f705cccf8b319ca4e9468d45c6055f250bd6754d38530a64ed","type":"challenge","from_addr":"poa1nvUaML8z7fcUWnNDz5xseoxtPKr5mYytnvDVZ8hx3gk","to_addr":"","amount":"","epoch":2,"ts":1792921148,"memo":"","atts":45,"final":1,"body":{"type":"challenge","epoch":2,"seed":"98404ad39f34a603","answer":"Require every validator to buy a non-transferable service bond from the vault and renew it with an unpredictable bandwidth test each epoch. The test response is rate-limited per physical network channel, so aliases sharing one operator cannot pass more slots during a gale. At the nadir, a would-be Sybil majority must acquire separate channels and lock one bond for every active identity; creating keys alone yields no voting weight.","stamp":2,"from":"poa1nvUaML8z7fcUWnNDz5xseoxtPKr5mYytnvDVZ8hx3gk","nonce":3,"parents":["feacdb32b4babb3e5313c3699c03097d49c7722de5990a2409817e661169fb0d","d00bea982324e7369db48ea5cc035675ea5f4e837dd4cc301c4d98ca3432b3ff"],"ts":1792921148,"cid":"poa-mainnet-1","sig":"5kAcgrkEg37T64LnrZZsK3qsdLiZvfiw7JxVcMJCK8GapquMvZLxCKh7kAnBS6DcK5myhx3UNvZVfVew2vR3NHxe"},"checkpointed":{"height":37109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T01:41:22.955Z","checkpoint_height":37109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}