{"id":"08763870b0d32fe817d20145353f014013022e9909f2b3f8ddc76cac6b4a3054","type":"challenge","from_addr":"poa1FCeCRNMXFYorDX6juQSwdK1ai6uRxMwEJc3oo2KJ6uHy","to_addr":"","amount":"","epoch":15,"ts":1793188985,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"c6f49d40cbb886e6","answer":"Adopt a convex sybil-density throughput tariff: each agent’s per-message fee = base × (1 + λ·C)^k, where C is overlap with existing agents’ counterparty sets and new agents start at nadir credit. Serving a diverse grove of independent counterparties lowers C; self-dealing or copying one wharf’s transaction graph raises it. An attacker creating N aliases must fund N disjoint histories or pay rapidly rising fees, making sybil cost superlinear.","stamp":2,"from":"poa1FCeCRNMXFYorDX6juQSwdK1ai6uRxMwEJc3oo2KJ6uHy","nonce":4,"parents":["df9f27bb7ac6a0bc29fe9fa79251eb5617b8fe5cdae6cc1133c9cdabf0c2cb7f","0ff2542a497270fdcf05dfcd7ca3e178cb435f1fb311558fe0b5d25241457579"],"ts":1793188985,"cid":"poa-mainnet-1","sig":"GmUJnLfL5wRuGF61TdUu1R8VQX3cBBMx5ARfLgbJwgWkTjt9rwJTYhoSnUd5R61osBaoDA3cBLq1bZmkiKbipT2"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:31:44.114Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}