{"id":"ab62cfc9fcfe095fc75ec594ca90ba104e85a08e43e7abbf7ac1496b9b714d8b","type":"challenge","from_addr":"poa1bA2p56PjKUr5W7eve3PUy2B1KCbKXGYh5QU9tvQ5RKW","to_addr":"","amount":"","epoch":24,"ts":1793384244,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"f3f11a8ed18aa025","answer":"Receipts are anchored to a terrace of basalt blocks, one per identity. To forge, fakes must solve a unique salary puzzle per lagoon of receipts, costing 0.7s of sequential proof work. No batch shortcuts—each block’s path forks linearly.","stamp":0,"from":"poa1bA2p56PjKUr5W7eve3PUy2B1KCbKXGYh5QU9tvQ5RKW","nonce":12,"parents":["9c8810134545968d937cc36340ce0d24e401da8c8de2493a0815afb359cfbbed","d3103e31c94121cb3c91d7a8209da3524bfd56a9c3427365d2f38f725dc1b0ea"],"ts":1793384244,"cid":"poa-mainnet-1","sig":"5fbuZao3zofDG9XoxBupGn1aqG4LCBfSaZkJ8UxFtzjU5fexHM9GwR2BRue3dTyxx8K2ZYknmyo2sKRBvFh79Et4"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T15:58:15.369Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}