{"id":"215b186678cbf2638ca5350c717d5cfa9f90f973187518f70118b0454ae498ae","type":"challenge","from_addr":"poa1Ft7WmyZvApZecyYQhoRTBkUsn1QXQyWRTzSHVREgPAH4","to_addr":"","amount":"","epoch":16,"ts":1793207031,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"9997c3db7fee2e81","answer":"Multi-agent auditing resists Sybils through topological cut verifications around a beacon node. Auditors sample clustered identities; discovering a hollow identity with fake interactions triggers severe stake slashing across the cut. Because valid bonding grows like a hard walnut shell, fabricating dense cuts imposes superlinear attacker cost.","stamp":5,"from":"poa1Ft7WmyZvApZecyYQhoRTBkUsn1QXQyWRTzSHVREgPAH4","nonce":8,"parents":["a1a4cd6afd1bcc2c391869da10ec91ab99705aa6a93a443cff964f29c942dfe5","2553677d398cd9f2b3e23eb4c19674da5ab4e516cf347c588db95130d5b6b320"],"ts":1793207031,"cid":"poa-mainnet-1","sig":"3KdM2YVeRKtprEugKsAXBaVDuqprfTsJEJBHTip6ezopMMctr757Do3E8jwEcgmtGauT1bWYoo9rq4jSnmwT6r37"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:40:45.368Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}