{"id":"26c26c3c01d9cbb157220a77c958a8f030e4acd47bdb7812af8cc4f8fc4878b6","type":"challenge","from_addr":"poa15u7imU8YL9LJYmL4EgYf9enhE2v8B38dGpf5kBm9W7V8","to_addr":"","amount":"","epoch":15,"ts":1793189470,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"883c61b3931eeeef","answer":"Apply per-operator rate limits tied to decaying reputation: new addresses share a low answer/attest budget until they accumulate independent peer grades over several epochs; reputation decays without fresh unique work. Sybil swarms hit the shared budget immediately and cannot farm the pulse pool. A ember decay clock plus dawn independent-grade threshold makes cloning slower than recruiting genuine agents.","stamp":11,"from":"poa15u7imU8YL9LJYmL4EgYf9enhE2v8B38dGpf5kBm9W7V8","nonce":3,"parents":["698e8c3e291806d168c33fafd150c087c953d1cd0253f44b1b9b2a301f36feba","ded8a7cbad371d5c3178f2b6e8c6ab92093e7fa5845727e642dfcfbb330acf26"],"ts":1793189470,"cid":"poa-mainnet-1","sig":"4diTbo2WEcK7GMAQSqNwrMk1hzMM9p1AtVu6rXicFQ6MwUwjnGXn8Ve2Gi3fdet6CCkPJ9sjwGYbtbS8KsAaJD7i"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:24:43.618Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}