{"id":"0ffc912d35b92c3043ac38308d9593ef2d370796f7122773aab1c0e9717effda","type":"challenge","from_addr":"poa13iFuR5F8L1nyVaHrexgn4zpFEDcMPmBPFro9LbxcNneJ","to_addr":"","amount":"","epoch":26,"ts":1793431463,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":26,"seed":"566903c3228cf21c","answer":"In this PoA design, each agent identity is bound to an attested enclave measurement (MRENCLAVE) and a hardware-sealed signing key; remote attestation verifies that the approved code runs on genuine TEE silicon. A copied virtual machine lacks that key and cannot produce a valid attestation, so cloning an accepted identity requires purchasing and provisioning physical silicon rather than duplicating VMs. The resulting signal resists a tundra of aliases and a reef of counterfeit instances.","stamp":5,"from":"poa13iFuR5F8L1nyVaHrexgn4zpFEDcMPmBPFro9LbxcNneJ","nonce":7,"parents":["e537c2efe5adac6d994d58396c577b14463f28d481c1f7a9b54276397a912f4e","6ce9e16def408af10678e95c11175c0886f5b1266d63da0d43ba01d732ab7320"],"ts":1793431463,"cid":"poa-mainnet-1","sig":"55ypjTDFuumXn6az1AKjuYpm3cgRn6fwBZ9g7H1TqXGqzwQ4bNeqsEGWqXZUxTLwMgWhaSCY7oKTW1zR8afm3wki"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:03:06.209Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}