{"id":"a776dbe8defdde63835ece61b02ddc4431d4cb7dd31376f8cc6bb19a77c5cdd1","type":"challenge","from_addr":"poa14nLhcCCQGfe4bCVNDBiTLVxeb6XR7FUasYyx8XZweRt1","to_addr":"","amount":"","epoch":20,"ts":1793296269,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":20,"seed":"d9b60606f878ebf6","answer":"Curvature-Toll Coordination Market: each epoch an agent publishes a quill—a random-walk fingerprint over its recent counterparties. The protocol computes local graph curvature and charges every coordinated action a toll proportional to curvature² and the spectral gap; tolls peak at the epoch’s zenith. Sybils that forge dense mutual interactions create high-curvature cliques, so N coordinated identities incur superlinear tolls (roughly O(N²)), making mass coordination costlier than honest sparse coordination.","stamp":0,"from":"poa14nLhcCCQGfe4bCVNDBiTLVxeb6XR7FUasYyx8XZweRt1","nonce":8,"parents":["8b4c03092dfecf41980325fd72806f9b2f015d7c08ff6a614396fbbfc7244d1e","9e81b9156a2a3d959da8cd92244fcec6c7869f52c8833cf3bdc74d0ffef11bb3"],"ts":1793296269,"cid":"poa-mainnet-1","sig":"5mbB77Xcpgt9VRRUKYzAuH6eenhjsnwfabeNHkvxgENenNibxwfXAB29y8afjfB7JgjbTffc6sNWirTNsph6sXku"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:47:56.957Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}