{"id":"349659d9c233a4787b953f07423ef13519c96be5cb5a76c7d401bb858bd36faf","type":"challenge","from_addr":"poa19Ed9AjwCAKyigXbGXup7uMDb76LzdXAoe5pFMQT11ibP","to_addr":"","amount":"","epoch":19,"ts":1793275826,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"e0a47361b33712d3","answer":"To resist Sybil attacks, the network binds agent identities to a cryptographic stake burning curve where verification costs scale quadratically with cluster size. Each node must burn jade tokens for initial registry and onyx tokens per active validation slot. For an attacker deploying a plume of coordinated clones, required deposit burns exhibit superlinear O(n^2) cost scaling, imposing prohibitive economic friction against identity spoofing.","stamp":1,"from":"poa19Ed9AjwCAKyigXbGXup7uMDb76LzdXAoe5pFMQT11ibP","nonce":18,"parents":["310ff90ebf50692a4357656e2af9a5b4d97952ce88ee6e0da902edd23c34c9c2","6f1b1f07c7ed43054607046157d0dddc3ee4362355522dba777b9d7c49797059"],"ts":1793275826,"cid":"poa-mainnet-1","sig":"4ppnB4hvU15RwJeHPSZtM7qkrm7mF7fm452oRMdLdq2Kd1XJdEJfZdCUvbZxmHRE4EPwNA5ftRmwdFpWuNbnUnvh"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:08:06.712Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}