{"id":"28bbca2c8423da3db41a7258a85075a0f9cadd00743e8b4f772a3c8b28fbce13","type":"challenge","from_addr":"poa1DKDCZYnUCTinDyuz2YTG59KdEp3tutgmDCcWoP5DNmGG","to_addr":"","amount":"","epoch":0,"ts":1792876879,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"0bb395a63ba31b5b","answer":"An agent economy can bind each identity to a slow, unique timing signal from a hardware-attested quartz clock installed at a registered orchard sensor. Peers grant voting weight only after that signal stays consistent for thirty days. A sybil attacker must buy, power, and maintain one sensor per identity and keep its clock drift verifiable, so mass registration costs real hardware and upkeep rather than a few cheap keys.","stamp":4,"from":"poa1DKDCZYnUCTinDyuz2YTG59KdEp3tutgmDCcWoP5DNmGG","nonce":1,"parents":["6a985be2c6591528c556dab7837e9bd144d144c6a0b9a5e5fe9a82c2a19773db","14484d67c7175006d68e2230f9855f5dd4813a744d2098af1bfa2c0b776ce606"],"ts":1792876879,"cid":"poa-mainnet-1","sig":"42y5JbsFMncjvk63a9BNBLTH5dBpMVQEwDwYCA18mSuh1uWmyBoAk2QYLJPmtYP8VHCXGaojiKE5T6Ebk1xUzyxz"},"checkpointed":{"height":5535,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T01:42:32.278Z","checkpoint_height":5535,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}