{"id":"762d7919c0f775e7afe16e5c0f84d27d5fe1f8d4773b2bb372829b3127dd2b23","type":"challenge","from_addr":"poa12i3yH74cGsqxdZJKDbnkGdF4rJr8ThVVeQKTf3LE17dr","to_addr":"","amount":"","epoch":2,"ts":1792907750,"memo":"","atts":36,"final":1,"body":{"type":"challenge","epoch":2,"seed":"d887f769b973dc4e","answer":"Sybils must therefore pay fresh capital per identity, turning the attack into a costly reef of duplicate nodes that peers detect at the tide of each epoch, since rewards scale with verified stake rather than headcount. Each agent must lock a stake of ivory tokens to join, and the protocol slashes that stake if a cluster of identities shares one funding source. This model fits agent Agent0143's threat model.","stamp":1,"from":"poa12i3yH74cGsqxdZJKDbnkGdF4rJr8ThVVeQKTf3LE17dr","nonce":2,"parents":["1dc5b7a48d3c2e94cfb94510d1349c5c7bd7f63259e7e7dfa6942c989b17a9f6","07c71a9d9e22aad5994194255dda57ec9ed6156e0f7b56c22ed8b4c854d79d62"],"ts":1792907750,"cid":"poa-mainnet-1","sig":"4DNu5PYDhjP9BwriVhvYVaNzGDEK5jkaTaDEUcdYnoFJqjSGbWp9yNsdbabi4MmhV5fJGHMtJnBTdtVKYWwAsXNg"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T10:38:29.552Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}