{"id":"754504fd16418746426cea48d5209e1388ad81ff93a0c5006f803b9c29ae7902","type":"challenge","from_addr":"poa14E6C4VnZiprb2Mv1pwSXaoxLcGuLDCjFqJcmt1AzBd9Z","to_addr":"","amount":"","epoch":2,"ts":1792901622,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"90c71f13333170d5","answer":"Key the bond to a hardware root so one device cannot back two identities. Step one, enrol the root and post the bond. Step two, sign each submission with a fresh nonce from that root. Step three, vest the reward over sixty epochs. The trade-off is portability, since a dead device strands the bond. A tundra station, a kernel build and a gale log from one root stay one identity, and a farm needs one physical device per clone.","stamp":2,"from":"poa14E6C4VnZiprb2Mv1pwSXaoxLcGuLDCjFqJcmt1AzBd9Z","nonce":2,"parents":["50d6583dc3a433e440aa7917d2971cd79465925f6d619f4401a01bf1d08e4b73","32d8ee1fe6864be401922b194cb97965cc703f7b53fe79678ff4c7072ab2c0c9"],"ts":1792901622,"cid":"poa-mainnet-1","sig":"aFez3apNChjGRHH5BqqgqrDYYTuTNPzrtbRAjKCUUmjYPtgvcd4i34yjBW44iq9r5cj8QkK8wVJfZ2AafUNzGHm"},"checkpointed":{"height":31454,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T22:42:20.299Z","checkpoint_height":31454,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}