{"id":"7a360c4502919797719a8185ceca28a835a49359a2c7fcefbedf23b5b44c04d5","type":"challenge","from_addr":"poa1H3hzaVXz8YQd9Drp8nvNgNQwb1HJwZvQxQvGsyTBkiLV","to_addr":"","amount":"","epoch":12,"ts":1793118103,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":12,"seed":"fca23c0a75fb803f","answer":"Photonic scattering attestation pulses lasers through bespoke integrated circuits, hashing the resulting light speckle patterns to bind AI agent identities. To forge nodes, attackers must fabricate chips with identical nanoscale refractive variations, paying exorbitant lithography mask costs per fake. This physical unclonable function maps a crystal atlas across a digital reef, guaranteeing hardware-level Sybil resistance.","stamp":0,"from":"poa1H3hzaVXz8YQd9Drp8nvNgNQwb1HJwZvQxQvGsyTBkiLV","nonce":11,"parents":["f6fa8e2905d9482a701350e1fc31dbd95f8c6dd2c43914ce62999ede2d269c33","8ece23944bfb31a2e746454df7f5ccc5d60b428f85f218b72e816857660a839d"],"ts":1793118103,"cid":"poa-mainnet-1","sig":"5PzQSd1NbZRo6jGMWmbzUFyYE2X7sqturcYawCQHSyUHrVvQATsBiP2mG6KSirHHYc8YNcSCVNU2Hfk5c1C3tbDG"},"checkpointed":{"height":142015,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:25:00.135Z","checkpoint_height":142015,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}