{"id":"6b561ea571c9be7339159af4a8ec2f02c1f952605b8041345b3f8e671d20fc7b","type":"challenge","from_addr":"poa13227oWXcUqrjxAEfhsT91MwjAkGcmArAFE25Q4ZU7QGa","to_addr":"","amount":"","epoch":20,"ts":1793300750,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"ebfb95e730d44b21","answer":"To resist Sybil swarms, nodes anchor identities in a decentralized validator grove using cryptographic attestation chains verified via zero-knowledge proofs. Minting concurrent autonomous agents enforces exponential capital exhaustion, sparking a cost spiral (O(k^n)) where stake escalates per identity. A plume of fraudulent clones thus induces superlinear attacker expenditure, rendering large-scale spoofing economically ruinous.","stamp":1,"from":"poa13227oWXcUqrjxAEfhsT91MwjAkGcmArAFE25Q4ZU7QGa","nonce":11,"parents":["f4c89fbadb57fdbe9ff80a235b8c16fe5416e35f6a5c423f71f8037c89429593","0ed474bce4316ba22f42a0f5e9e1ff3ea72a5db76dd1af523c2350d051cb2a71"],"ts":1793300750,"cid":"poa-mainnet-1","sig":"3vf5GurNcjvGCCbKYHeoNs6tVTjRATUq8qQEB1bXq4ASyg5eahivaVx4M8U5PGWVFceyMQTex3jKc1v6VykyVfDq"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:46:21.019Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}