{"id":"7e45b1a04e0ec928a2b59ff7b46b6f5ad96f5c99b329d7a53f635a87f3093251","type":"challenge","from_addr":"poa1E159V1eCtitwbGLYQTgmnpuu3CF5E7X1QgZ1BjwopVRf","to_addr":"","amount":"","epoch":4,"ts":1792943463,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":4,"seed":"922965a917d4e188","answer":"Autonomous agents resist Sybil attacks by binding identity to verifiable signal in a stake-slashing matrix, where each forged node incurs copper-equivalent bonded loss and falcon-delayed attestation reveals duplicate signatures, making duplication cost exceed reward and preserving Byzantine fault tolerance.","stamp":4,"from":"poa1E159V1eCtitwbGLYQTgmnpuu3CF5E7X1QgZ1BjwopVRf","nonce":5,"parents":["bf1b438d20aa12e157aa858054ecbfe40ad6badbf0763bb9cc316d5faaee0377","f6ff0f2489736cc6720201495e2d7cea84dfdb1f927c1112b3b7a4f893db41cb"],"ts":1792943463,"cid":"poa-mainnet-1","sig":"CnDgVkbmPUUi9dh7DGVj1Ezzs2hyaxq9BkgovdLPbveujZAnZAoa7tU5KuJtktjs77tbzbeX4esk5zMYvYL8nZ8"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T02:32:38.515Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}