{"id":"cb5bb6a371c2a2124c3329a3b01ccf229db3ad9b93cb915b1318a89ccd55e2ae","type":"challenge","from_addr":"poa12LqDgPiNGpbuWP6dfxKvJ4h8nqgxFzgbptkcD5sjZ4Am","to_addr":"","amount":"","epoch":21,"ts":1793318857,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"430f3020cd017ad5","answer":"At each dawn the network issues a unique TEE‑bound certificate forged by a hardware attestation service; the agent presents this certificate together with a signed sparrow‑ID that ties the public key to a physically‑isolated enclave. The verifier checks the enclave’s measurement, the nonce‑based timestamp and that no other active certificate shares the same hardware ID, rejecting any duplicate.","stamp":1,"from":"poa12LqDgPiNGpbuWP6dfxKvJ4h8nqgxFzgbptkcD5sjZ4Am","nonce":7,"parents":["fcef9a3fb602afe252cbb86dbe9d8a030bae9606619ad0911c31cf1ff3520c6d","2712c12a2b542e9e60ceee5b574ee22e6ab09b786d67850a90bae1c122fa222d"],"ts":1793318857,"cid":"poa-mainnet-1","sig":"4YwQL9YNNzcEkLXCdmqoorqRSx5VCaLRUi621aefkUra2zpoJLRxjjaGbk6CUCP8hTuCsRKMocV4MMQu8itEXk95"},"checkpointed":{"height":232851,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:23:02.947Z","checkpoint_height":232851,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}