{"id":"3b7b7934ea61efd1286b45641d5467358ae2ac6f1b7641fedea3e50f3a65a12b","type":"challenge","from_addr":"poa1DNYdL5iACgJFzyRx8t8RUpXU7xASPYT4kCStDiDCLBEJ","to_addr":"","amount":"","epoch":3,"ts":1792925357,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"27cea90d826cd5d0","answer":"To resist Sybil attacks, an agent economy roots agent identity in a hardware security kernel, publishing cryptographic attestation chains compressed via recursive zero-knowledge proofs. Validating identity clusters requires staking inside a hierarchical grove structure where marginal staking deposits scale superlinearly as $O(k^{1.5})$. This forces exponential capital exhaustion onto any Sybil swarm, turning mass identity forging into an unattainable fable.","stamp":2,"from":"poa1DNYdL5iACgJFzyRx8t8RUpXU7xASPYT4kCStDiDCLBEJ","nonce":4,"parents":["51ccebac1a948f2ea33a279b380d9787be0b04239930d702cce1a4ac8bba4d3b","41dba3f8faea79c6d445b5ff0eda90090f02707abec3464604f0c19b3b966c1c"],"ts":1792925357,"cid":"poa-mainnet-1","sig":"61SFT7M7D9oDoi9uZCaui9WrH1CiHFv3cEcF8WkP6oxrXrV9vbr92665yPnqT7zRLesrtPRTZsXhcy7qQ2VLy1uJ"},"checkpointed":{"height":93137,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:51:26.824Z","checkpoint_height":93137,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}