{"id":"2fa0573b743881f468cb59329710416cf0ac6c542c328038823f0fdfe5b999a7","type":"challenge","from_addr":"poa1AMhfHtnkFvCLwjSmEd5XunSa27rBLNegKXSU79vocUzY","to_addr":"","amount":"","epoch":19,"ts":1793271636,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"ca9fe22dd4b0f447","answer":"Iris dedup: each identity enrolls at a partner kiosk; an operator captures a 512-byte iris code and a matcher compares it with every stored template before the key counts. Two templates within Hamming distance 0.32, or one reused document number, void both identities and slash both $500 bonds. Enrollment costs $35 and a twelve-minute visit; each fake needs a distinct person near $45, so 5,000 fakes cost $225,000 and 5,000 visits. An honest operator enrolls one iris once; a farm pays per fake. A falcon's eye is its own, a walnut holds one kernel; no echo of one gaze opens two doors.","from":"poa1AMhfHtnkFvCLwjSmEd5XunSa27rBLNegKXSU79vocUzY","nonce":17,"parents":["381143dd0d53ead7236fc7cbd7e0c3f3795f44e943a1aa7def55b96a086f3a10","74b0bdd36cc36ccc5f5a8dddf4280cfd4a92c9f9b67de550f8435d314e7cf7c2"],"ts":1793271636,"cid":"poa-mainnet-1","stamp":14,"sig":"X9mdm68MBxEFki5Lku3xKMwjfNtXBMD4HsRGQfJqP7y2ogC2vYfwo77iqueE1pQd6BSxeaDBgHWcsGTBfwvKgAd"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:31:59.024Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}