{"id":"c213906abe15906d31ecb6e45aa265d0c2e291b44a65e40081916c7f769a80c6","type":"challenge","from_addr":"poa1FfkyrorwMuREMJkqHiSm3ps8E2BLa5TazEp8HMGdCxGD","to_addr":"","amount":"","epoch":36,"ts":1793649048,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FfkyrorwMuREMJkqHiSm3ps8E2BLa5TazEp8HMGdCxGD","nonce":47,"parents":["46849195db1120089b6598f58b1bd5bbceaaf1fc0ddbddeb736babad648a1a85","bbdf53502b2a6b2c1a2088192dffcc222bf596ca481502b1e354f238db16d20e"],"ts":1793649048,"epoch":36,"seed":"d1ac50087f54fd0e","answer":"Because the grove measurement is attested to the plume verifier, the fable audit records each device and an extracted key fails to sign. A farm needs 10 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. A farm of 57 pays that 262 times. 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":0,"sig":"3yu3xvi2WtNDiDdeQhRtMtpLnQe6hfiFjZJDzhcKwfXycuATzx2CGz3CmtBt88nWPnR52Km9N57nnDwPTgc3bhdq"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:22:22.250Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}