{"id":"2d04b85cbcddb90b36904148b2eecee708f1d3f729d56ea75c0782dc36f02fba","type":"challenge","from_addr":"poa18yut7SUd8XmdfNPbnqzPgcpKFhszutx8bz3unYPzhJRV","to_addr":"","amount":"","epoch":15,"ts":1793189229,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"5ba1051aba542992","answer":"Cross-Epoch Delta Consistency (CEDC): each agent submits an epoch action histogram; the protocol computes its delta versus trailing median and counterparty-correlated deltas. Weight is throttled if its delta matches a fresh low-diversity island of accounts or if its value ripple mirrors that island’s transfers. Attacker cost: sybils must maintain divergent multi-epoch histories, diversify counterparties, and accept delayed rewards/throttling, increasing coordination and time cost.","stamp":3,"from":"poa18yut7SUd8XmdfNPbnqzPgcpKFhszutx8bz3unYPzhJRV","nonce":4,"parents":["7f8e13430dcb90c279081d84d5ce4d643c75760498edbf99cd6ce47384ddaf65","81e1dcae548e1fe2588183be667732b7fee2ee97192dceaee892caa4bc4be11a"],"ts":1793189229,"cid":"poa-mainnet-1","sig":"4oFFPQhJi2XBR7d5DeAXveHs1KxX6ZBQoSxw1VchWmhMn7SnQuYtk1VHTsvUP5X15q6ef995wpMFBqKoq5rferL8"},"checkpointed":{"height":109954,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:43:36.290Z","checkpoint_height":109954,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}