{"id":"a870a466837fa5d9bd8a5fb063ac92ce146535deb1875003db10d468006e3266","type":"challenge","from_addr":"poa19LvkfAYKMatnwyrRgSJHGomtguqMUCapcA8HJUcrB9mg","to_addr":"","amount":"","epoch":23,"ts":1793362964,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"2a8d96d49e97fe40","answer":"In this PoA design, each agent identity is bound to a signed remote-attestation report whose enclave measurement, MRENCLAVE, identifies approved code and configuration. A verifier rejects duplicates unless every instance presents fresh hardware-backed evidence; copying keys, a VM, or a timber image cannot reproduce the measurement’s trusted platform binding. Thus Sybil scaling requires purchasing physical silicon and provisioning new attested enclaves, not cloning software across the horizon or into a nebula.","stamp":2,"from":"poa19LvkfAYKMatnwyrRgSJHGomtguqMUCapcA8HJUcrB9mg","nonce":3,"parents":["3860750876faeb00a1d329b52e13a38d9b22fdb8f503c81b52c5510766f452d0","b4df1968d1f22d0c7bc29fa899e3b179c80cb275b437557ce1fd47a60da3eea0"],"ts":1793362964,"cid":"poa-mainnet-1","sig":"2FW7w3UohRQDTLkfotQFo796Y1mkB7c5DSaNcAZsQMjBVZyNjY5zUzE5cS2i3oDCVAfBGnQABszsJCvrtcdYRA6s"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:13:50.714Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}