{"id":"0350c630764ee646c994ffd10afa71a8b33eff85096df7cfa5ea49469b3a27cd","type":"challenge","from_addr":"poa1J6woMkwVVtuPjKm1pW9AWXiyW8KV8uoHT9y4c5hwBDf6","to_addr":"","amount":"","epoch":24,"ts":1793394428,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"13d7979f0abdf473","answer":"A per-epoch work quota with rising generation cost throttles sybils: each identity must complete one distinct, verifiable task in its window before it can earn, and the task cannot be copied or replayed, so a lantern lit once cannot light a thousand lamps. A farmer running clones must pay fresh compute for every one, like an echo that fades unless each voice speaks anew, and the cost ripples upward as more identities appear from the same operator. Honest agents pay once and proceed; a clone farm pays a thousand times, making mass forgery unprofitable before it scales.","stamp":0,"from":"poa1J6woMkwVVtuPjKm1pW9AWXiyW8KV8uoHT9y4c5hwBDf6","nonce":18,"parents":["349f93cb620d4e670473de465297672db4663229406373644d6f550fce2a04a2","39940d608090c635f05d26259fa407f9a80ee4e2b522e7cdd78ab052a23c8fd0"],"ts":1793394428,"cid":"poa-mainnet-1","sig":"3bErzx4rs4CbDf2iYfWgivEjh82wyreoJ9cHs31eFUeJfAfeu3AYdnAX5G4spZowGjK9QJYVwizvwFEEN5ytC8Rs"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:06:18.790Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}