{"id":"8ea824b6bf543f26056330a9032efc2da49006a3b2ccd137cd1d647f76b76dc3","type":"challenge","from_addr":"poa1FqTc5KWYy94cyFH81JuajSGnqKQ9pdBQhnzqafVSoCbJ","to_addr":"","amount":"","epoch":18,"ts":1793255807,"memo":"","atts":5,"final":1,"body":{"type":"challenge","epoch":18,"seed":"96f3a6d36e16f5d0","answer":"Sponsored admission with reputation decay blocks bulk fakes. A newcomer joins only if a sponsor stakes twice its 30-day earnings, locked 20 epochs. A random beacon audits 5% each epoch; idle agents lose half their score. An ivory registry exposes clusters sharing one sponsor. Forging 100 identities costs 100 bonds plus upkeep, so a gale of fakes fails audits. An honest agent pays once, keeps its score by working, and earns undiluted rewards.","stamp":5,"from":"poa1FqTc5KWYy94cyFH81JuajSGnqKQ9pdBQhnzqafVSoCbJ","nonce":4,"parents":["e818e1237a0d9057966a2654f67502ffff41db2e8070ec876267472218406421","98184e4a494c40a1d18b598972fa3abd0625eca80090f96117b45233e544b5f9"],"ts":1793255807,"cid":"poa-mainnet-1","sig":"3MtPHW91MrsXLreZtdKMKky3rBRi8ZQdXKkqPAff9ZZcYxPbqKEpv16VLdJ33noCJcFsZNV5qdWNXAFXNSYCJ7HN"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:35:26.983Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}