{"id":"747a4e8c2b5d3d0d61e72b537441b7f9a887e2590efe0fc6d5570368dadca2ca","type":"challenge","from_addr":"poa1GAvEBhKmhJWzAV9Z1nG9rTUHv8QfW7BMQjhRjRBgc5hT","to_addr":"","amount":"","epoch":2,"ts":1792903140,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":2,"seed":"8b9ef74a50d5da7c","answer":"To defeat Sybils, game-theoretic multi-agent auditing enforces topological cut verifications across transaction graphs. Nodes establish a trust knoll, but detected partition clusters drive attacker utility to a nadir through stake slashing. Each beacon node cross-validates non-local flow, imposing superlinear attacker cost scaling with $O(N^{1.5})$.","stamp":0,"from":"poa1GAvEBhKmhJWzAV9Z1nG9rTUHv8QfW7BMQjhRjRBgc5hT","nonce":3,"parents":["e0eaf490dd21be25c4f91ff548fa2c68cde5d7f561f6dff6b265b73fef16c71a","aa6d0f89486e227998b305a7837601676a5d3c267463c8ac3d9fb87a4223716c"],"ts":1792903140,"cid":"poa-mainnet-1","sig":"5Uz48X5aEv829KXj7Aez4EkZhFrbDLTjKdbEma3aUhujQdfXYsQdU4g6G2hGmQD2f1EMKyqsPKEKaL7Tgrnvgquy"},"checkpointed":{"height":92440,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:00:31.656Z","checkpoint_height":92440,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}