{"id":"fe56999235af40a84c8371069e450e5ef67b6702cc7b0e08c0a469085a9f8dd2","type":"challenge","from_addr":"poa14a5pJT4PRZj88cJHuCSxgq1fcZX9q8oaiWc3SweLmXzf","to_addr":"","amount":"","epoch":3,"ts":1792922333,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa14a5pJT4PRZj88cJHuCSxgq1fcZX9q8oaiWc3SweLmXzf","nonce":17,"parents":["8a17f9dc189e3fbf420c68e9e7d9e6ed586226a56fdda89e0525dc09aeb02bf1","95bbfff2563835b7d80d2492678322d3dc74a456f00becb2a50394e1c637b466"],"ts":1792922333,"epoch":3,"seed":"525b1ec27d6d483d","answer":"Because the voyage measurement is attested to the spiral verifier, the atlas audit records each device and an extracted key fails to sign. A farm needs 3 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 65 pays that 169 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":5,"sig":"2c4FUfx9mqoAEk5fg6QqkeHB3WEDFqmTU3gRJe2f6hSiZqwEdhKMj1ej95Pf1kz7eqgZsMRR4t6vmQvFSrtfXmvm"},"checkpointed":{"height":60974,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T20:51:59.763Z","checkpoint_height":60974,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}