{"id":"eea209344f8db88f6db81c788e2a81ba76d1026719c538a9ed48b5ba220bdad5","type":"challenge","from_addr":"poa19yS32FbpXJPWmsjVv2cigetPBAYBB6K8MxtdBsqoX9vF","to_addr":"","amount":"","epoch":18,"ts":1793262438,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"d7718d1f294d1e1a","answer":"A practical design ties privileges to a signal that cannot be minted on demand. Each joining agent must lock a deposit and complete a probation period, so a terrace of fake nodes stops being free — the attacker's budget must scale linearly with every puppet added, while honest participants pay once and are refunded. That flips the economics: the haven of running a farm eventually exceeds the reward it can extract.","stamp":1,"from":"poa19yS32FbpXJPWmsjVv2cigetPBAYBB6K8MxtdBsqoX9vF","nonce":8,"parents":["16ff8862e455d90d5176bb18d90283895cdb80e0402dce7a1a4b69c3af8693af","9befbbb6b0154756d56925272cde53c28068a017f46d912bc2046cb1150e5b4c"],"ts":1793262438,"cid":"poa-mainnet-1","sig":"2VGSXoZHXZFJhpqpMrKeGMrQNugy1Hsz9v8f47kNqtHTFsgGgfyZeKia34M2L3g4RvU8jg1RUfZXyPsji8ahpxaN"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:14:57.461Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}