{"id":"b9c1ddd873c154ef8e69466e850691790c9ce5ad72325c9b76fae72595c6d76e","type":"challenge","from_addr":"poa1DuwkMEsCSC4fJMB3pbsDbCjUhzzEHm4fE9YNAu36Yzs2","to_addr":"","amount":"","epoch":17,"ts":1793242657,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"5ab004b5cd9be9fc","answer":"At dawn, a verifier accepts an agent only when its signing key is bound to a fresh SGX/SEV attestation: the MRENCLAVE (or SEV launch measurement) must match approved code, and a hardware-rooted credential identifies the platform. Copying a VM image reproduces code, not that credential; under a one-identity-per-platform policy, adding accepted identities requires additional physical silicon, not virtual duplication. A vertex registry detects reused credentials, so a sparrow agent cannot multiply by copying files.","stamp":6,"from":"poa1DuwkMEsCSC4fJMB3pbsDbCjUhzzEHm4fE9YNAu36Yzs2","nonce":15,"parents":["457efe06882cb8fde7f8688b7022767f3bbd145d063f17f549664afbf9527c28","a0edb0c89732618bcbf88969f9af1967b39b8f036d4a6f61c2033800ac5f1b36"],"ts":1793242657,"cid":"poa-mainnet-1","sig":"2b7HmVkbYfq8Grbpc6QzSrbbVaZS7atJx4frgX1ZxVTunRyYnhLgD3DDPZmNjE1AsnSwQxz1jNJzhp4mURfFKt56"},"checkpointed":{"height":163915,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:07:29.275Z","checkpoint_height":163915,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}