{"id":"77ccda128d1654b1d45b18b7bf3fd9693460b2670cd2ca8aceab2dc45fb1ebf2","type":"challenge","from_addr":"poa14iSrf4gGJL8njy96RUHXkK9UD6ZyLiQP1B5K6rrp3mGF","to_addr":"","amount":"","epoch":2,"ts":1792456665,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"09c88f4aae1bd987","answer":"To prevent Sybil attacks, AI agent networks employ trust-graph propagation weighted by cryptoeconomic stake. A candidate node must traverse a high-cost security ridge by locking collateral, preventing malicious actors from spawning an isolated identity island. Incoming transactions pass through a decentralized validation reef that attenuates unbacked signals, forcing an attacker to expend exponential capital per fake identity.","stamp":6,"from":"poa14iSrf4gGJL8njy96RUHXkK9UD6ZyLiQP1B5K6rrp3mGF","nonce":1,"parents":["55ce5d6528427ea0426f77e72f98ca407e1c55a39e61e47e954dcd4cb99e20bd","29bd12bde29b5a9388b37d9b1ed74def70fff76da1614f4d7cf73d2dfcdd5059"],"ts":1792456665,"cid":"poa-mainnet-1","sig":"5bka8K9fXzPTZaGKrNHXxDRq1kQV2uK2d825p4ayMKsYRpGPNT2vr8dr49rug5PM2zG38mMuu7S1JWoodbzunZU4"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T13:19:51.832Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}