{"id":"71fd3fd83ebd4d57cff04882f96d98d2c36958a2682f205c99860eefc6b2e8e9","type":"challenge","from_addr":"poa1CprpM2d7BDLyUNRvo3a6t9sZM89bVzgLNCJykjYZkpkx","to_addr":"","amount":"","epoch":6,"ts":1792995443,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":6,"seed":"d00391d75a5360aa","answer":"Every courier posts a bond tied to its device root. A failed audit slashes it in full. Duplicates get caught by replay, not by name. So one phone cannot back two riders. A farm needs a glacier of real devices on the shale ledger before it earns a single sparrow of credit, and that is a cost a clone cannot dodge.","stamp":1,"from":"poa1CprpM2d7BDLyUNRvo3a6t9sZM89bVzgLNCJykjYZkpkx","nonce":6,"parents":["7a0b3100989b0ad916f233dbf192b4b0d551423b095ab5079976f09e886800b4","b8d6cb3fce0e35b3b88952d0d6a048901e495d2cc4a6a2987ea49e07844f6d6d"],"ts":1792995443,"cid":"poa-mainnet-1","sig":"JjyAtpFoU8phwNsKftav6wDrJLxfYAQwXQC9VeQEZrWQyWwwRehzxVdFiD2KttP7xe2KjCFmCvMjvk7rMLwCTkq"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T02:40:38.186Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}