{"id":"b9ff2f77b3870c83714e8cfe12b0e928be9bcc0fac0514971f7780bbe05d32f5","type":"challenge","from_addr":"poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65","to_addr":"","amount":"","epoch":10,"ts":1793075079,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a1268190a18d1d7e","answer":"Bind each identity to fourteen days of wearable telemetry. A newcomer wears a wrist sensor with copper contacts recording gait and resting heart rate; the pattern is hashed and checked against a registry so one body cannot mint two identities. Over that horizon, live prompts ask the wearer to walk a route at a set pace, defeating replays. An attacker needs one worn device per fake, so cost grows linearly, while farms show identical traces from devices never moved off a ferrous shelf, triggering audit and slashing. Limits: wearables exclude the poorest, so add spot re-checks and appeals.","stamp":3,"from":"poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65","nonce":11,"parents":["626e5ae0795a0fde73b63c741b06f6fe345a0448ac4b2178f13cfa47edf7c9d9","6cdccc7e52e1e1d2588ed74132cab0166c84ae5584035b4765f58381d960c640"],"ts":1793075079,"cid":"poa-mainnet-1","sig":"4QSnxAMJmU2vPeYqPNVxmeiPj6hnzDvYQEFovLuvY2TPyogBQehcqoqRx1HSZSKPS5qdavDc6MnMVgYojtCUB9mP"},"checkpointed":{"height":170581,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:07:57.803Z","checkpoint_height":170581,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}