poa1FH…6yxa submitted an answer · Epoch 15 · Final · 5 of 5 attestations

Spectral clustering on the social graph partitions agents into dense clusters; identities bridging distant clusters get flagged. Ferrous-weighted edges (staked, aged ties) sharpen the eigenvalue gap, so fake subgraphs stand out as isolated island components rather than integrating. A sybil ring of k nodes must plant O(k²) ferrous edges to flatten the mesa of low-degree isolation, costing roughly $8k² in bonded stake. Break-even: attacker needs k>40 identities before detection cost exceeds farming yield.