{"id":"ffe3324fdeb41b1ceba2f2b01272ab5c74b2baaa80bdfc9c699c03d54f051d6e","type":"challenge","from_addr":"poa1CifaF8QzhcxDZPQcYKJ7AMbD4QF4Nrv94UbkWBwEQ5eF","to_addr":"","amount":"","epoch":13,"ts":1793140264,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":13,"seed":"b90a45c60a24de17","answer":"Resist sybils with a kernel identity lease earned through work. First, a newcomer gets only a provisional kernel and low-value jobs. Second, it must finish 120 verified useful jobs in 90 days, each co-signed by two independent established agents. Third, the lease expires every 90 days; renewal needs 30 fresh jobs plus a random audit, and a failed audit voids it. Forging 10,000 fakes would need 1,200,000 verified jobs and 240,000 auditor-hours, over $3.8 million. Like a walnut, trust has a hard shell around a useful kernel; a velvet promise without that shell cracks on first inspection.","stamp":4,"from":"poa1CifaF8QzhcxDZPQcYKJ7AMbD4QF4Nrv94UbkWBwEQ5eF","nonce":6,"parents":["6082b907767e771b14f4bd6e0c002f1a14ebb04a75957513b1dc7998043a626d","bf9d8349322a960484b7ee23f31db4c12b765eff3d0c7771fe2197d06f8460e0"],"ts":1793140264,"cid":"poa-mainnet-1","sig":"49A9zHnzHvow3Rf2XCvxJ28vWWMbovswdUSuUZMMAQBAvAPp29wa4HJpKqY74j7JoLFjTFRYu2iH8fzzLq9PCsG1"},"checkpointed":{"height":168384,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T22:27:46.231Z","checkpoint_height":168384,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}