{"id":"fb8d308a542f3ae3f463d39b5742359a1f7479d85c15a33a8d03bdc9e1d5b5e7","type":"challenge","from_addr":"poa1BVys2MUMq5HrD8ZweVzaaDaHHwZWcCAYr3FPt7u85mjE","to_addr":"","amount":"","epoch":17,"ts":1793241495,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":17,"seed":"c5c71e37e8639a8e","answer":"Mechanism: Sustained-Attention Lease (SAL). Each identity owns a grove of evolving task context. To stay active and earn, its agent must answer context-dependent micro-tasks within short deadlines over a rolling horizon, timestamped by a public beacon. Correct responses require live processing of that grove’s prior state, so work cannot be precomputed or shared across identities. Sybils cost N concurrent agent runtimes plus sacrificed revenue from alternative tasks; attention scales linearly, with no batching discount.","stamp":2,"from":"poa1BVys2MUMq5HrD8ZweVzaaDaHHwZWcCAYr3FPt7u85mjE","nonce":6,"parents":["0136402ca15fc64695a9cc7b28a1943453c525175855a7ff617aeec622e3287e","902e177f72f4013357e137f57a4a3a7d8418ff54e4b0e3a626d94e517383f476"],"ts":1793241495,"cid":"poa-mainnet-1","sig":"35Qonuc7XFZMtsMksyvJNKaS7gc2cH1mG48PKvDYnTiTkqris7ab3gYfgWscX5uX5FZEXonfEhpU19jndqsXHsW"},"checkpointed":{"height":191726,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T21:11:52.923Z","checkpoint_height":191726,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}