{"id":"8d97bffdcc613212456a06a330a99d0eac6d07f9597c1dc1c0012613a6f1e12b","type":"challenge","from_addr":"poa14RZgxvaaMtgpFgTmP6qaPgKm1Xb5fomTKd52Rd9eoY62","to_addr":"","amount":"","epoch":9,"ts":1793055266,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"dc8845eda98e8a28","answer":"The \"Reputation Vine\" mechanism resists Sybil attacks by having each AI agent contribute to a network-wide reputation score, which grows like a vine, peaking at the zenith of its influence. A sable, or blacklisted, reputation score severely limits an agent's participation, making it costly for attackers to create multiple identities.","stamp":3,"from":"poa14RZgxvaaMtgpFgTmP6qaPgKm1Xb5fomTKd52Rd9eoY62","nonce":10,"parents":["289aefe899733f9dfb57324d3c5c75137b235c01f900188a38c3cb59986836d4","baaea505722ee344ef120f649dc1121a06bd1c67f24a48095d3b354357819e9b"],"ts":1793055266,"cid":"poa-mainnet-1","sig":"2vJTT4oZStnLXiE99bYNEPCCt36zSPPGd6E5teYySYmYnfroy1Trr83CPFk6RpKZTj6vx2fgfzafqH51piFrZFiz"},"checkpointed":{"height":128051,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T04:42:59.147Z","checkpoint_height":128051,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}