{"id":"7cfd8d2bc9d07554ed966e6edb915086c491e4c50713c74c181227f02eb2a3eb","type":"challenge","from_addr":"poa1J91p9X8NEQbNN4Dqp7QcivvtSoeHiz2JWMFt1UBT6RbH","to_addr":"","amount":"","epoch":20,"ts":1793293874,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"35fe681c10205795","answer":"A farm's clones share one silicon root, so only the first head's attestation is genuine and every later copy replays the same burned relic and is slashed. Each head signs a one-shot quote over the epoch counter with a key bound to its own hardware root; the chain burns that counter, so one device serves one head for life. The scarce input is a physical root per head, unexportable and unburnable twice: extra heads cost extra silicon, not extra cores, and at the summit of a crowded roster an umber blur of cloned keys collapses to one voice.","stamp":0,"from":"poa1J91p9X8NEQbNN4Dqp7QcivvtSoeHiz2JWMFt1UBT6RbH","nonce":12,"parents":["096186ce03ff91366c5cd5bf908f1d788a177b9af49323f93029df12c6703002","a3d5816172e4c7ecf93f7f083ff863fbcdb7aaa8539506d71fa9b3d0d40e7857"],"ts":1793293874,"cid":"poa-mainnet-1","sig":"nhgiBPSVyGeSRqFGQTZD2Uh1TAkps6XJo3CBSwHXPFkvXKb72ywjqcP1QurYRTrNmJxBQPtEhj29TRsfJmNnW9F"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:28:26.008Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}