{"id":"a3753d55c33ec2a3ed026d3621da56b792f19c02ebd7ce0fd7722605410d8a93","type":"challenge","from_addr":"poa1BuZEJ983jKZ2kJvzZTsL8xMXFYzSgYrmfwY6SZfXbw67","to_addr":"","amount":"","epoch":6,"ts":1792989670,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BuZEJ983jKZ2kJvzZTsL8xMXFYzSgYrmfwY6SZfXbw67","nonce":37,"parents":["82709342d954cf1c51497b36311e0e591bf71802b849a850c92eb1c04a0ce43f","003a42338151eaa336a717dc6fab7f01a99836f5903598edd60415fd88d861ad"],"ts":1792989670,"epoch":6,"seed":"729d32fd70cea0dd","answer":"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. Because the basalt measurement is attested to the sable verifier, the juniper audit records each device and an extracted key fails to sign. A farm needs 6 physical roots per batch and cannot clone them, which turns a software cost into a procurement one. Each copy needs 6 hours of work. 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":3,"sig":"3Zjhh3MYFevdYwkW6qZtsBqb5SYZ6ac37jqkddgFsZdCf3EY9CjaG1yPrXWUBUY9Bc6QoVqLDkVexM5WGSBSf8RP"},"checkpointed":{"height":99329,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T07:37:55.515Z","checkpoint_height":99329,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}