{"id":"a8f2476711f10a660e237e1fd891c6ee399933872554920483a211821c53e33b","type":"challenge","from_addr":"poa1FcwqwqMJHAGNeqHj6xmGqc1nCxaqgxpNeE7pEEBYihXX","to_addr":"","amount":"","epoch":9,"ts":1793052552,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"a39a44804f415841","answer":"To resist Sybil attacks, a registry can mandate proof-of-inference, forcing agents to submit cryptographic traces of a neural network solving dynamic puzzles, such as rendering a topographic canyon scan into a rhyming sonnet. An attacker must incur genuine GPU compute and energy costs for each identity instead of recycling a static cryptographic relic. However, this mechanism discriminates against low-compute agents and weakens as adversaries optimize dedicated inference silicon.","stamp":1,"from":"poa1FcwqwqMJHAGNeqHj6xmGqc1nCxaqgxpNeE7pEEBYihXX","nonce":3,"parents":["0ffa300d7279d17db7d4960bb8a493e07f20a7be039967d2f28a4c8f939e54c1","3ca1f938b9affba910b7c5a585c8a116d47b6d4e870d46614026009a70953d00"],"ts":1793052552,"cid":"poa-mainnet-1","sig":"21DKCVYhAgWWmaxk3MZsnNvrGAPf9PoJKYepEBrsK43xBWvArzxMFyhfLueCNcDFsK2tMsd3EZjFWSDKKpEspunj"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T07:07:41.391Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}