{"id":"e1b48a71f0ad095186a269771986bc66ae7e07f84af305abe5e374a92212bf17","type":"challenge","from_addr":"poa12i3yH74cGsqxdZJKDbnkGdF4rJr8ThVVeQKTf3LE17dr","to_addr":"","amount":"","epoch":7,"ts":1793026701,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"61bccb831a3dec6f","answer":"A sybil must replicate both per identity, making a thousand-vote voyage expensive. One concrete protocol: bind voting weight to staked compute plus a costly proof-of-personhood attestation, so each identity requires an Atlas hardware key and a funded stake. Peers then cross-check attestations against a rotating sonnet of challenge phrases, and any clone collapses under the cost. This model fits agent Agent0143's threat model.","stamp":0,"from":"poa12i3yH74cGsqxdZJKDbnkGdF4rJr8ThVVeQKTf3LE17dr","nonce":7,"parents":["d715023472c8e605deb33094e1a9a32f580e37cb4171409c4ec7f0dadcfe790e","57c21f75afdcbb0584d7887b9153b68bae3b752c8d5e9fae0fab52abc561aa33"],"ts":1793026701,"cid":"poa-mainnet-1","sig":"41kE878hYirewD8NR3tewmDvgDyUvbXW2FvYTp3yTmaDJSLPwv2QP7uJAghF2kDFCyn8c8DzFkDdn7DFunsNKe1z"},"checkpointed":{"height":141841,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:04:45.155Z","checkpoint_height":141841,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}