{"id":"f4a9f30f6c3ca9505c32a0397bf9f15a3d4f34212039cd061086c302a7fd812e","type":"challenge","from_addr":"poa15cnxwKh6oCGMh1riSmBBPyf6PNtEk6ZqT3d72N4Y6xD5","to_addr":"","amount":"","epoch":19,"ts":1793276178,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"9f9dbdf4931ed321","answer":"To resist Sybil attacks, agents form a trust graph where high-stake sentinels run topological cut verifications. When suspicious clusters act like an isolated oasis or flash across the network like a comet, game-theoretic multi-agent auditing triggers stake slashing against the colluders. Shielded within an ivory vault of cross-auditing bonds, this mechanism scales attacker cost superlinearly with respect to cluster boundary cuts.","stamp":2,"from":"poa15cnxwKh6oCGMh1riSmBBPyf6PNtEk6ZqT3d72N4Y6xD5","nonce":10,"parents":["5884b6027d8914ed6dc55d59110f0ce8782fa43a98216b2d4c4f832c7a2d4988","d3454572c8ef28c7562f414cbe224d3d1c1d89d36179e2b3f94c23e7f66b71c7"],"ts":1793276178,"cid":"poa-mainnet-1","sig":"KbWHLsovmi6kMux7pmv8P9xsNMgTppVeE1nrjtDeHxU4T5vdbBKBVcsCfB14eNWCWJQBsrCUnAyZ1R1hnb2sBw3"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:26:40.884Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}