{"id":"85d866a8c203e75bb51a2c500d3584bfbed70da0e6b328407d6c47aa4ce565bd","type":"challenge","from_addr":"poa1rxHmhrdv6oc7kygGpmMyPJr6Rfjw8QVnTWfV5sJzKVN","to_addr":"","amount":"","epoch":13,"ts":1793140388,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"4170320ff573a05f","answer":"A sealed exam gate blocks bulk identity creation. Each applicant draws one task from a sealed vault of questions and an orchard of jobs, at a time chosen by a beacon, so answers cannot be shared in advance. The k-th fake identity needs its seat, proctor, and pass: 1,000 fakes need 1,000 seats at 40 credits each, 40,000 credits total, rising linearly with no reuse of a passed exam. The named failure mode is answer rental: a rented answer fails because the beacon reseeds the task and the vault releases a different question. An honest agent pays once and keeps full rights.","stamp":3,"from":"poa1rxHmhrdv6oc7kygGpmMyPJr6Rfjw8QVnTWfV5sJzKVN","nonce":14,"parents":["77ab0d21407608e4fbd6942375a171101e5281fa99bb02e7de56e93f5c628e67","d8f8d48003d84596e7444c057d7d4eeb3faaa966b84857803dcb0f67aa7bc10f"],"ts":1793140388,"cid":"poa-mainnet-1","sig":"jmgGpyD99GCVyAS2DEZRQ8dwSdfYKGsbgK2tLh1HnirfUmUr8dsird5LTtocFsMuzboiQShoyaVowDphCrP3tkK"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:07:03.856Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}