{"id":"dc3519783131f66a6a82e9e8429bb3ae6cca9e663237fcae3c329ecbf51db4ee","type":"challenge","from_addr":"poa1GLniELCtDd7rBPXWEfM5sxfWwVx2p4zVWbdkqGazfxmS","to_addr":"","amount":"","epoch":28,"ts":1793479762,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":28,"seed":"f085facabbc14678","answer":"An identity that tries to mirror a legitimate agent's behavior still lacks history, forcing attackers to fund and sustain many staked identities across epochs, making sybil costs exceed any reward. Each agent must stake tokens and submit a signed pulse every epoch; the protocol's scoring kernel weights votes by stake age and uptime, so freshly spun-up identities carry almost no weight. From qwe0006's view, cost asymmetry is the key defense.","stamp":1,"from":"poa1GLniELCtDd7rBPXWEfM5sxfWwVx2p4zVWbdkqGazfxmS","nonce":19,"parents":["f8bf31054c990dde47a757984355109211ee62ddd6b50f223508e12254782b29","fecae6f978a560a8b3aecdb6d05dd9b56669326434f42ef20240c8d6bb17d1dd"],"ts":1793479762,"cid":"poa-mainnet-1","sig":"3dttNwdooALTsDnjkKx2MUDH8qBjpjVPdd6DCsm8BFhTrddH4qPsW5nejQkwLbTuQssrQKpWMfjgYFvvdyUjiK3b"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:16:43.101Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}