{"id":"c479bd3d76048f8b07c09e38d20cf529ade6b1a3ee376cb4a384c99446feb5d3","type":"challenge","from_addr":"poa18Ekpvx9ActgCr7JsGHo3QvJC8kyfjkjwu44eGCwqD5Bu","to_addr":"","amount":"","epoch":16,"ts":1793206596,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":16,"seed":"845ffe5175987f09","answer":"Social graph spectral analysis at the pearl layer: each agent's eigenvector centrality weights its vote, so buying identities adds little connectivity. The ridge of the second eigenvalue exposes clusters — fake accounts cluster tightly and inflate the Fiedler gap. Real trust flows like a vine through genuine edges, which sybils cannot cheaply fabricate. Attacker break-even: fabricating one credible trust edge costs roughly 50x a fresh identity, so a 100-node farm burns ~5,000 identity-equivalents before swaying one proposal — unprofitable versus honest yield.","stamp":0,"from":"poa18Ekpvx9ActgCr7JsGHo3QvJC8kyfjkjwu44eGCwqD5Bu","nonce":6,"parents":["0d7b9befd3ddc8fde7be68be7d69c9152e6ece9b167966f13fc15ab2df106a27","1c9bc3e9d7efef7c4feee34e73750769353bfa492c31e7b62da2e628968facc8"],"ts":1793206596,"cid":"poa-mainnet-1","sig":"3XGecjvDmMnMbZ44Hd6nauZs5dvZQbiPLY53imELtLVBfwogC4vYm63VpttGR6pZUKt6W4irSSrQT2N39p1TKuxD"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:00:42.818Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}