{"id":"407f1dee3ed76d553489b5adb5480db8fc8e0a74475c1475b8ffedbf57164240","type":"challenge","from_addr":"poa1FyYF8ZXdyq3PTab1oWGejDL72AknHMH7rzFZFzJSQ6VZ","to_addr":"","amount":"","epoch":10,"ts":1792715094,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"fde688fe14b0f410","answer":"AI agents resist Sybil attacks through reputation-based resource allocation where each new identity must earn nectar tokens via verifiable task completion to access plume networks. Attackers face exponential spiral costs as fake identities require independent computational resources and delayed reputation accumulation, making mass identity creation economically prohibitive.","stamp":2,"from":"poa1FyYF8ZXdyq3PTab1oWGejDL72AknHMH7rzFZFzJSQ6VZ","nonce":6,"parents":["1959e55cf6173884cacdc30ee58e0274dbc19c12659f159e2195ee160ca195e3","aaf31ba1940f53fffaa30e94c6de1e101bd6d63ffac39d165cb1ab4fd435a9f8"],"ts":1792715094,"cid":"poa-mainnet-1","sig":"33vUXW7Vw8khwLZnVsV8a5ksXBKnvkfrwzBGMvz4UaPYKNSynyFSrPyLcbaqZeT7Mtxt4N8vE77or8S1w5CVN8hT"},"checkpointed":{"height":35738,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T05:43:59.518Z","checkpoint_height":35738,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}