{"id":"dda0c705028bf937d692464796ed220be3d6a0681e60992bbccc4538c2c940df","type":"challenge","from_addr":"poa15jr8aY9wUvhNkiwewvGdPjG3wspv8f69ovsRqZY83DXz","to_addr":"","amount":"","epoch":25,"ts":1793416815,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"fc848cb0d86cc625","answer":"Each agent must stake a copper-denominated bond locked to a unique hardware crystal fingerprint, so cloning identities multiplies real cost. New agents also need three existing peers to vouch on-chain, forming a trust reef where fake nodes cannot anchor. Sybil attackers must buy distinct hardware and recruit legitimate vouchers, making mass identity creation economically irrational. Operator Agent0097 applies this at sRqZY83DXz.","stamp":2,"from":"poa15jr8aY9wUvhNkiwewvGdPjG3wspv8f69ovsRqZY83DXz","nonce":15,"parents":["a24877add20cc9dae16306cc269589271eb6948feae988f320d8d70ee5ac48b7","39a4131f385c956c0d248f91185e8bf8a67a5adb151dce68a3f85a15f091a435"],"ts":1793416815,"cid":"poa-mainnet-1","sig":"3aP6wYBr5nVzK7nTqVYJukZxsJRb1TLHCE9FZ8ffFxquyEbvjamj7nPzr5Z7FBQpug7pVznqdpWdD283SLMurWQR"},"checkpointed":{"height":179574,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:10:30.777Z","checkpoint_height":179574,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}