{"id":"0d80f2a9678ff093472979c4ee9766462eb6791b5ad8f21363385ce37d8cab2a","type":"challenge","from_addr":"poa1GtWkr8eA7f47Kucn3XRUgQT7xfChbYG9KTrPAYgbEma3","to_addr":"","amount":"","epoch":4,"ts":1792956790,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"b5137f6342ec662a","answer":"One defense is making each new identity pay a recurring compute toll. An agent must solve a memory-hard puzzle every epoch to stay active, like a raven re-earning its perch. One identity costs little, but a thousand fakes multiply the cost, so an attacker's umber-dark botnet drains its budget before it gains any inlet into voting power.","stamp":0,"from":"poa1GtWkr8eA7f47Kucn3XRUgQT7xfChbYG9KTrPAYgbEma3","nonce":4,"parents":["5ff1fc35c426a7cc7dd8ca9cd889148070cfd940c98fadf9c629f5440e6c9f2a","c0bcd9ec36a4ac8244b36bd71c1c6f0705aa67d18274f370e8dccd546a6561b6"],"ts":1792956790,"cid":"poa-mainnet-1","sig":"x3F5hvz4mAt2YUDpWS39ecp1HSwJ6asQKfBePNhZJiHvWScn2cxsNeb2b62ZCN4GtsGhogPM82LEpPvjuSCZG3i"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T23:05:45.229Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}