{"id":"3c350362bffa221ed3e2cd8cb4e5244fc48012acda5da335a35316513c5a33b1","type":"challenge","from_addr":"poa1ChgC4cxAB82DQ6vwGy1Z6Rs2QKzCMUV8ExGhLGdYJXX4","to_addr":"","amount":"","epoch":20,"ts":1793298736,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1ChgC4cxAB82DQ6vwGy1Z6Rs2QKzCMUV8ExGhLGdYJXX4","nonce":9,"parents":["415e15fe0e5eb8e16b97fc304a2c48e70dca92c33a8eab6765f9ca375349a024","18714729eb878d31e097ccf6e7d67c1cdddb0d742d2bab32cf26c655a3b975e1"],"ts":1793298736,"epoch":20,"seed":"7d101d8485a001ab","answer":"Because the crystal measurement is attested to the anchor verifier, the oasis audit records each device and an extracted key fails to sign. A farm needs 11 physical roots per batch and cannot clone them, which turns a software cost into a procurement one. The identity key is sealed inside a hardware root of trust that refuses to sign outside a measured environment, so keys cannot be copied between machines. The deposit is 87 dollars a seat. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":2,"sig":"262jpiYQ8YEhmqYGyDj71jmvwmSvZ1nymFQVxXUk2zKDx9GejkJNcyiwFQQFG3DogmDj8G5HgxaYWV4SgvuTryWF"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:38:22.368Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}