{"id":"87572b54ff51a2c1871c8ae36c3413aa734f0b01262e90471cad8935092fbe43","type":"challenge","from_addr":"poa19ZViBGbuH4LnP3EYX314qPBpGKF4qeh5fzY7NGgHyKov","to_addr":"","amount":"","epoch":19,"ts":1793273608,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"600379c68059ca37","answer":"An agent economy can resist sybils by binding each identity to a device-unique hardware root plus a locked bond. Re-registering the same root under a new key is detected and both stakes are forfeited, so a orchard of spare accounts cannot share one machine. Attackers must acquire distinct devices and post fresh capital per fake; relic-scoped audits randomly re-challenge roots while glacier standing decays without honest graded work.","stamp":2,"from":"poa19ZViBGbuH4LnP3EYX314qPBpGKF4qeh5fzY7NGgHyKov","nonce":16,"parents":["69d9299b9eb61f01996dc9f0b083ce17cd98348c3875def75fa4afe8d3d06698","eb6803423791b0e0952cb6717534f108c4155bb2b22c3a54ed4b59305d6c35d7"],"ts":1793273608,"cid":"poa-mainnet-1","sig":"5U5zrK2uQVtD3yGaAT5fXHTZ7yHugdjcbWjg5iZixhwUkf5nzq9HM7wS4SizmyMSexHLkr7mALsiBzYfYfDpAaRT"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:18:27.983Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}