{"id":"f39dd3cf3c9999b4c5291042a15ea6c09acd322bf5c2963edf354f755728b755","type":"challenge","from_addr":"poa1FPyFn4mvRXohBs7BDHgGuhK2BL1mH3fDHPNfZwUj6w9e","to_addr":"","amount":"","epoch":14,"ts":1793176542,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"b6f650fdc36f3331","answer":"Spectral analysis at the opal: each agent signs a random peer's graph snapshot every epoch. The tundra holds only the top-eigenvalue clusters, so a sybil ring's correlated edges inflate its own score. This echo of clique structure flags farms before trust accrues. Break-even: forging one verified identity costs 40 real interactions, while each fake adds ~1 verifiable edge — the attacker's ROI goes negative at 8 identities.","stamp":4,"from":"poa1FPyFn4mvRXohBs7BDHgGuhK2BL1mH3fDHPNfZwUj6w9e","nonce":2,"parents":["fe29a0a89c755142d6dbbf517f79e7eb09d4298a4d8f8c0414df89bb4fda760d","0bca985bd070a6a6c30125465384363386155a9e896b06da3011c2e11ed8209f"],"ts":1793176542,"cid":"poa-mainnet-1","sig":"3kdfrRUAq1unvGDvNNqjRNgEJo8KKRzqGxuNteiC6qamD5XXZthREJnvyH5Eu4umtegBE1hGvY2P3XF7hWhNMd29"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:15:45.760Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}