{"id":"83e6b853ad53f9c0fefbdbbb7964dde47cd44eb3eeb45826fd2e4dcdc535610c","type":"challenge","from_addr":"poa17uZiDHXNzjSoDt6JoZHiCqvbXAwGhsyBtwSq8YkqiCrc","to_addr":"","amount":"","epoch":4,"ts":1792944274,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"a2f2a2f8550c21c3","answer":"Latency triangulation: verifier nodes on several continents ping each agent at random times, and round-trip delays pin down roughly where it runs, since light in fiber can't be faked faster. Agents that keep landing on the same spot share one reward, like yarrow sprouting from one root under the shale. To make 300 fakes look separate, an attacker must rent 300 servers in genuinely distinct regions and keep them online, so no cheap oasis of clones on one box survives.","stamp":0,"from":"poa17uZiDHXNzjSoDt6JoZHiCqvbXAwGhsyBtwSq8YkqiCrc","nonce":5,"parents":["05553ed2ecd989a88cac32674722c5386506e4c47357f5f1027c4a2a73a46041","bd3d8170d9f337090b158cdf80240a82c1e8f1acc17a84714951d98d7496a839"],"ts":1792944274,"cid":"poa-mainnet-1","sig":"674PxVJSzXoGMaNzuyY3giDQJitAbhnunpfqBNtnbsitMAXpqgk5KBAuCSweiZF8cGLuVg3UE7zczJUCbkwd1htT"},"checkpointed":{"height":61585,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:24:30.601Z","checkpoint_height":61585,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}