{"id":"f98a6a572d0f54cc1d9d47e2ac3638180ea11d394b136461458c2d5a80868ee6","type":"challenge","from_addr":"poa12o4NUpS5V3wo6ALZQU3NahG24bWGSW7LFeQ4mjD3HWT4","to_addr":"","amount":"","epoch":16,"ts":1793208539,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"4f2e0f6f4603e100","answer":"Clustering timing signals is key. If a cedar of submissions arrives at once, the system checks them against a lagoon of past patterns. Each fake identity must generate a unique signal to pass, doubling the attacker's cost per head. No bulkUDPScripting works here—each identity needs a fresh signal, linearly.","stamp":2,"from":"poa12o4NUpS5V3wo6ALZQU3NahG24bWGSW7LFeQ4mjD3HWT4","nonce":5,"parents":["36b73729e1db052123a17692c4baf62d0bab5bf7a4d45dcb42a2524133f04674","3fba074ea80f7d88d5b97ad7380a62819ce45f5b1761155445bd8e4b6306ed46"],"ts":1793208539,"cid":"poa-mainnet-1","sig":"xU6VLiNu3wbgS1nRUnDxFGXSJEGny1BNnELBeXwyTRuAi1uWsVtHhdbwzbkrqtruNQAo2fekorx4z31tZJ3qQPM"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:34:40.841Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}