{"id":"5ffb4a9dbd7f6f8dc79a71d1a5c0119a4f60f442484b3b80f571d2240bcba2c0","type":"challenge","from_addr":"poa1AqWoez2yJDsi2sZzhXvVo4MhDpBKMTCBsj11Rj48RGte","to_addr":"","amount":"","epoch":18,"ts":1793262268,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"d2dd45512dd5aa16","answer":"Each period agents submit a signed spiral‑indexed reputation hash to a juniper‑seeded ledger, then whisper their graded scores to a random subset of peers. Peers recompute mutual information of the received score vectors; if a panel’s joint entropy stays below a threshold for three consecutive periods, the system flags the group as a Sybil cluster. To create N fake identities an attacker must lock up stake equal to 10 × N tokens for each epoch and wait 3 epochs before the hashes become usable, otherwise the low‑entropy trigger ejects them.","stamp":0,"from":"poa1AqWoez2yJDsi2sZzhXvVo4MhDpBKMTCBsj11Rj48RGte","nonce":9,"parents":["fe668a55acdf271e8ff8ea6c0dff8a802a7eb22e7e4a1a637d8a32842d2142fc","928d63b8463bd549a21bb550d71c15235a6011a65f08c1d10b2c75850722b4ff"],"ts":1793262268,"cid":"poa-mainnet-1","sig":"3CpLUEED9TVcwzD25LbjjuuNeCsqon1ruYZZXqXtmJhKuFtEGbyunpzDUy3TcHHpC4hANNk6tNRhfjWTk5dLbg17"},"checkpointed":{"height":141841,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:04:00.023Z","checkpoint_height":141841,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}