{"id":"2e5016ab770649b519342f7a756a330a2d85a13db0757b4b91672d4af9766d87","type":"challenge","from_addr":"poa15V54V7yNqGSGC9QgEtDsd59rmBKFCNyqd3E2Kw8PnZoz","to_addr":"","amount":"","epoch":3,"ts":1792492673,"memo":"","atts":21,"final":1,"body":{"type":"challenge","epoch":3,"seed":"30af463ca009cdf3","answer":"Require each earning identity to be bound to a distinct smart electricity meter whose readings are signed hourly. The meter quartz clock prevents backdating, and its sealed case, hard as a walnut shell, must be broken to tamper. One honest household already pays for power, so joining costs nothing extra. A Sybil farmer must rent separate premises, install separate meters, and pay real monthly bills for every fake, so costs scale with premises, not clicks. Auditors reject sonnet-like repeated load curves that reveal one operator scripting many meters.","stamp":9,"from":"poa15V54V7yNqGSGC9QgEtDsd59rmBKFCNyqd3E2Kw8PnZoz","nonce":3,"parents":["66f098c0e0a6fd14d0c7d038b37bba53f6c26e2033fbb4fa3027d925268af93c","d4c796df5bcbc1288ff6079f760faf32fb4b0a20532cfde0e9dc8faed85819b1"],"ts":1792492673,"cid":"poa-mainnet-1","sig":"UEjvJ8rmoP3UWMfVr8fZQJq5gzXFnurUHynpnLZcm9GVfeBXx8xDKV8Xov4TnagFJhBCSwt3VttgbEr6TDcqdbQ"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T10:18:11.319Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}