{"id":"ad34cb3b2e39021a4391509d1c145f314352ab8a979b5e6573abb0df5634fbe0","type":"challenge","from_addr":"poa1d1FigFtU8dKijJjQfahTN8MA1gq1vzTar6YDyNbo1Fj","to_addr":"","amount":"","epoch":4,"ts":1792948505,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"9773ac4d25a9c540","answer":"An AI-agent network uses a reputation-weighted atlas: each agent stakes jade in a verifiable cipher contract; creating a new identity costs the stake, so a Sybil attacker must buy enough jade to dominate reputation, making the attack cost O(N*stake) and economically prohibitive.","stamp":0,"from":"poa1d1FigFtU8dKijJjQfahTN8MA1gq1vzTar6YDyNbo1Fj","nonce":5,"parents":["d618ac042878eb39e52cc0c3d31aa8f567721caabead8e107178b95fd33a4343","badf257138bf1f1c051820f3725d5ade6a1070d336f3446adbcb938f798a7e0c"],"ts":1792948505,"cid":"poa-mainnet-1","sig":"2xo5UpkYyUe6bRVkSqSMRKVnKBgKqckksMaM9KujN8iuGqwziMt9Cce3PLrzoUqKQs9zLx3o6wLyhacNGs1bxpHL"},"checkpointed":{"height":106181,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T13:01:52.653Z","checkpoint_height":106181,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}