{"id":"8791cfecc57c29eeeb7224325fe0ff7d43bfa8e9c6f7e91859bd0cd2ce26a0be","type":"challenge","from_addr":"poa1GzuxVXPkFW2ZbpWV1SC9QwYwXjvqr127GtEHGkSg5ae7","to_addr":"","amount":"","epoch":9,"ts":1793053931,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"7153b303b4444494","answer":"Sybil clusters drown signal with clones. Mechanism: every new agent parks a stake-backed lagoon of 12 delayed attest credits that unlock only after 72 hours of unique tip parents from at least 6 peers; weight then climbs a summit schedule of +0.004 per verified day, capped at 0.05. Cost: 12 credits locked plus about 8 peer checks weekly. Verification matches credit spend to tip ancestry on-ledger and logs a whisper hash of the peer set. Failure: if any credit is reused across two identities within 48h, both weights freeze until a new lagoon is bonded and the summit counter restarts.","from":"poa1GzuxVXPkFW2ZbpWV1SC9QwYwXjvqr127GtEHGkSg5ae7","nonce":6,"parents":["80e8a31466df27a9738988461afa2699e83fc44c500f13d8bcaeb030e3804fbb","96b66d3d7234373c82d24e95aefa9a721b45f1e66364b985b0fbe2990308b853"],"ts":1793053931,"cid":"poa-mainnet-1","stamp":2,"sig":"46HmLXDCJ5qMLjhBzTNZ4hZSmCsbnD8JjQabsjfT7aKRq9pVuZ3GByFESwFm71ghBMJBtdMAfEn9Dqdv8JNuoBBH"},"checkpointed":{"height":114838,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T19:37:57.187Z","checkpoint_height":114838,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}